MY SEXY NEW DESKTOP ARRIVED TODAY~. It's a Dell 990, specs are pretty good imo.
Some general info from dxdiag:
System Information
Time of this report: 12/28/2011, 21:22:27
Machine name: DELL-PC
Operating System: Windows 7 Ultimate 32-bit (6.1, Build 7600) (7600.win7_gdr.111025-1503)
Language: English (Regional Setting: English)
System Manufacturer: Dell Inc.
System Model: OptiPlex 990
BIOS: Default System BIOS
Processor: Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz (8 CPUs), ~3.4GHz
Memory: 4096MB RAM
Available OS Memory: 3316MB RAM
Page File: 2571MB used, 4061MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7600.16385 32bit Unicode

Display Devices
Card name: AMD RADEON HD 6450
Manufacturer: ATI Technologies Inc.
Chip type: ATI display adapter (0x6779)
DAC type: Internal DAC(400MHz)
Device Key: Enum\PCI\VEN_1002&DEV_6779&SUBSYS_21201028&REV_00
Display Memory: 2415 MB
Dedicated Memory: 1013 MB
Shared Memory: 1402 MB
Disk & DVD/CD-ROM Drives
Drive: C:
Free Space: 49.2 GB
Total Space: 79.9 GB
File System: NTFS
Model: ST31000340NS

Drive: D:
Free Space: 255.9 GB
Total Space: 256.0 GB
File System: NTFS
Model: ST31000340NS

Drive: E:
Free Space: 255.9 GB
Total Space: 256.0 GB
File System: NTFS
Model: ST31000340NS

Drive: F:
Free Space: 361.5 GB
Total Space: 361.9 GB
File System: NTFS
Model: ST31000340NS

Drive: G:
Model: HL-DT-ST DVD+-RW GH70N
Driver: c:\windows\system32\drivers\cdrom.sys, 6.01.7600.16385 (English), 7/13/2009 15:11:26, 108544 bytes