Windows 7: Bull in a Supermarket....

System Manufacturer/Model Number self built
OS Windows 7 Professional 64-bit
CPU Intel E8400 3GHz
Motherboard Intel DX48BT2
Memory Kingston PC3-10700H 4Gb
Graphics Card XFX Radeon HD 5850 BlackEd.
Sound Card Asus Xonar DG
Monitor(s) Displays 2x Samsung SM-T220HD 22"
Screen Resolution 1680x1050 on two monitors

Keyboard Microsoft Comfort Curve USB
Mouse Razer Diamondback 3G
PSU Thermaltake ToughPower 850w
Case Thermaltake Armor
Cooling Scythe Mugen II
Hard Drives OCZ Vertex 2 120gb 3.5" (OS) Seagate Momentus XT 500gb Samsung F3 1Tb (games) 2x Samsung F1 1Tb
Internet Speed 8128/443

System Manufacturer/Model Number Acer Aspire 5610
OS Windows 7 Professional, Windows Longhorn 4074
CPU Intel Centrino Duo T2350 @ 1.87 GHz
Motherboard Acer Grapevine
Memory 1GB (2x 512MB DDR2 400Mz)
Graphics Card Intel Integrated 945GM Chipset
Sound Card On-Board RealTek HD Audio
Monitor(s) Displays Generic PnP Monitor
Screen Resolution 1280x800

Keyboard Built-In / Random Logitech wireless keyboard
Mouse Synaptics Touchpad / Logitech Click! optical mouse.
PSU Generic PSU
Case Acer Aspire 5610 Standard Case (U.S. Version)
Cooling Air
Hard Drives 160GB SATA HD
Internet Speed 2.57 Mbps Download / 0.29 Mbps Upload / 57ms Ping
Other Info I call it the craptop.