Here’s an excerpt from the press release:
“New OptiPlex 780 USFF is world’s smallest fully functional commercial desktop PC with integrated power supply and Intel vPro technology
OptiPlex 780 USFF delivers a more efficient power supply than the HP Compaq dc7900 Ultra-slim and Lenovo ThinkCentre M58p Ultra Small Form Factor business class
New OptiPlex 380 offers greater flexibility with more form factor options than the HP Compaq dx2400 and the Lenovo ThinkCentre A58
Long life-cycle options and support for Dell’s Flex Computing Solutions – Virtual Remote Desktop and On-Demand Desktop Streaming environments”

The Dell OptiPlex 780 USFF is available for order today at prices starting from $629 USD. The OptiPlex 380 is available for order today at prices starting from $329 for the new Desktop, $339 for the Minitower, and $349 USD for the Small Form Factor.

via Dell OptiPlex Desktops.

Based on the Intel P55 chipset, the Vostro 430 comes with the Core i7-870, i7-860, or i5-750 CPU, the ATI Radeon HD 4350 512MB, NVIDIA GeForce GT220 1GB, or NVIDIA GeForce GTS240 1GB video card, up to 8GB of 1333MHz DDR3 memory, and up to 2TB of 7,200rpm storage space using dual hard drives. The PC includes a DVD-ROM, DVD burner, Blu-ray combo drive, or Blu-ray burner.

Dell’s Vostro 430 has one PCIe x16, one PCIe x1, and two PCI slots, a 350W power supply, twelve USB ports (4 front, 6 back, 2 internal), optional 802.11n wireless PCIe card and modem, a Gigabit LAN port, and optional 19-in-1 media card reader and Firewire.

Its mini-tower chassis has dimensions of 14.58 (h) 6.69 (w) 17.43 (d) inches. The system weighs between 17.86 and 23.48lbs, depending on configuration.

The desktop runs Windows 7 OS and starts at $699. It can be purchased at the Dell Small Business store.

The Intel P55 chipset-based Precision T1500 comes with the Core i7-870, i7-860, or i5-750 CPU, the ATI FirePro V3750 256MB, NVIDIA Quadro FX 580 512MB or Quadro NVS 295 256MB GPU, up to 16GB of 1333MHz/1066MHz DDR3 memory, and up to 2TB of 7,200rpm hard drive storage using two HDDs. The CAD-certified PC supports non-RAID, RAID 0, and RAID 1 hard drive modes and includes a DVD-ROM, DVD burner, or Blu-ray drive.

Dell’s Precision T1500 has two PCI Express 2.0 slots: PCIe x16 (half-length) and PCI-e x1 (3/4 -length), as well as two PCI 3/4-length ports. There are also a 350W 65%-efficient power supply, twelve USB ports (four on front panel, six on back panel, and two internal), an optional 19-in-1 media card reader, optional Firewire, a Gigabit LAN port, and an optional data/fax modem. All video cards offered with the T1500 support dual monitor configurations.

With Windows Vista Business OS, the 3 Year Basic Limited Warranty, and 3 Year NBD (Next Business Day) On-Site Service, the Precision T1500 starts at $949. It can be purchased at the Dell online store.

The system is based on the Intel Q45 chipset and features an Intel Core 2 Quad, Core 2 Duo, Pentium Dual Core or Celeron CPU and up to 8GB of Non-ECC DDR3 1066MHz memory. The OptiPlex 780 is configurable with up to two 3.5- or 2.5-inch storage units, including standard hard drives and solid state drives. The drives can be configured without RAID or in RAID 0 and 1 modes. Optical drive options include a DVD ROM or a DVD burner, but the system can be also configured without optical device.

Regarding graphics, the PC uses the Intel GMA 4500 integrated graphics with a VGA port and optional adapter card with a DVI port, or one of the following dedicated ATI GPUs with 256MB of VRAM: the ATI Radeon HD 3450 (2 VGA /1 TV-out), Radeon HD 3450 (2 DVI /1 TV-out), and Radeon HD 3470 (2 DisplayPort or 1 DisplayPort / 1 DVI).

For networking, there are an on-board Gigabit LAN port, an optional Gigabit LAN card, and an optional 802.11n wireless card.

Along with various display outputs that depend on video card configuration, ports and slots include 8 USB connectors, a Parallel, a Serial, and an eSATA port, as well as a Firewire port via an optional controller card.

The Windows Vista-based PC can be configured with Intel vPro technology, providing advanced remote system management, while for enhanced security customers can choose the Trusted Platform Module (TPM) 1.2 chip and optional full disk encryption on select hard drives.

The OptiPlex 780 is available in three form factors: Mini Tower, Desktop, and Small Form Factor. Besides different chassis sizes and weight, the three versions have different number of media bays and expansion slots, as well as different power supplies. Also, the Mini Tower uses full-height video cards, whereas the Desktop and SFF models come with low-profile cards. The Desktop additionally supports full height card via an optional riser.

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The Dell OptiPlex 780 Mini Tower and OptiPlex 780 Desktop have a base price of $544, while the OptiPlex 780 Small Form Factor starts at $564. The prices include 3 Year Basic Limited Warranty and 3 Year NBD (Next Business Day) On-Site Service.

The PCs can be purchased at the official Dell online store.

The new Vostro PC with its sleek, clutter-free design saves as much as 44% desktop space versus a traditional desktop and monitor set-up. Furthermore, with the optional Flexible Mount you can save up to 79% of your desktop space, according to Dell.

The Vostro All-in-One, which includes a 19-inch LCD with the computer case mounted on its back and wireless keyboard and mouse, uses a single power cord. In addition, you can reduce clutter by configuring the PC with a wireless network adapter, so you don’t have to use the Ethernet LAN cable.

Regarding AIO’s core components, there are an Intel Pentium Dual Core and Intel Core 2 Duo processor, Intel’s G41 chipset with the GMA X4500 integrated graphics, up to 4GB of DDR2 memory, a single 160GB or 250GB hard drive, and a DVD burner or Combo optical drive.

The system also features built-in 1.3MP web camera, stereo speakers and microphone, six USB ports (3 side, 3 back), a Serial and a Parallel port, and a Firewire port on select models.

It weighs between 14.3 and 17.6lbs, depending on configuration, and has dimensions of 15.21″(h) x 18.79″(w), 4.09″(d).

The Dell Vostro All-in-One runs Windows Vista Home Basic or Vista Business.

The PC can be purchased for a base price of $599 at the Dell Small Business online store.