Oddly enough, only my main system is a custom system built by me under my company name. The rest are all prebuilts.
Main System: Orion
CPU: Intel Core 2 Quad Q6600 OC @ 3.0GHz Zalman CNPS8500
Mobo: DFI LanParty LT P35-T2R
Video Card: VisionTek Radeon HD 4850 512MB Zalman VF1000
Sound Card: Creative Labs X-Fi Platinum
Case: ThermalTake Armor Xaser VA8000B
RAM: Muskin Black 4GB (2x2GB) XP2-6400 4-4-4-12
Power Supply: Corsair 620HX
HDDs: Seagate 320GB, 400GB, 750GB, 1.5TB, 1.5TB SATA & 250 GB USB2
Optical: Plextor PX-716SA/SW DVD-RW SATA
Monitors: Samsung SyncMaster 225BW 22" & 941BW 19" widscreen LCDs
Speakers: Klipsch Pro Media 2.1
OS: Windows 7
This system is about to be retired for a core i7 with 8GB of Ram and some more hard drive storage. These components will be used in my upcoming home theater PC build.
Backup System: Apollo
CPU: Intel Pentium 3 1GHz
Mobo: A Open Generic
Video Card: nVidia GeForce FX5900
Sound Card: Creative Labs Sound Blaster Live!
Case: Cooler Master Centurion Blue/Black
RAM: Samsung Original 512MB 2-2-2-4
Power Supply: Enlight 300 WATT
HDD: Seagate 120GB
Optical: Dell DVD-Rom/CD-RW
Monitor: Hanns G HW173D 17" Widesceen
Speakers: Could use some suggestions, need to be upgraded.
OS: Windows XP Pro
This a system I use for some slightly older games that don't play well in Vista/7 or on newer hardware. Games like the first Max Payne or Age of Mytholigies and Moto Racer. It was a system I bought from an old job for $25. It was branded as an A Open computer. I rebuilt it with a better looking case, better PSU, better memory, bigger/faster HDD, CD burner/DVD rom, Zip drive, black floppy, better sound card, and video card. I think the only thing I kept was the mobo and processor.
The DOS Box:
CPU: Intel Pentium I 133MHz
Mobo: Generic
Video Card: Cirrus Logic 2MB
Sound Card: Creative Labs Sound Blaster 16
Case: Packard Bell
RAM: 48MB SIMMS
Power Supply: Generic
HDD: Seagate 2.1GB
Optical: Generic 4x CD-Rom
Monitor: Hanns G HW173D 17" Widescreen
Speakers: Also need to be upgraded
OS: Windows 3.11
This thing was my first computer back in 1995. I keep it around for one purpose alone and that's for playing my old DOS games. No emulation, just pure unadulterated DOS. Since I have a lot of DOS games and spare parts up the butt it just seems logical. The computer against the wall is a customer's system that they can't pay for and it's not worth anything to sell. Also, there's nothing like playing old DOS games in widescreen!
Other than that I have three other desktops and my laptop that aren't worth mentioning.