So, a brief time line of computers I personally have owned:
1991-1998: E.T., a 486SX 20Mhz, 2M Ram (Later 4M ram), 100M HD (later 500M HD), CD. Dos 5.0, OS/2 2.0 to 3.0, 2400 modem (later 14.4 Modem). Purchased new from Easterntech, LLC at a Cogan Computer Fair. Died.
1998-2001: Hippie, a Pentium 90Mhz, 8M Ram, CD, 850M HD. Windows 95. HP Pavillion 3050, 56K Modem. Purchased used at Captain Computer. Given to Goodwill, likely deceased.
2000-2002: Compaq Of Doom. Pentium 120Mhz, 16M Ram, 5G HD, CD-RW, 56K Modem. Windows 98. Compaq Deskpro XL 5120 Purchased used at a Cogan Computer Fair, co-owned by sister. Given to Goodwill, likely deceased.
2001-April 2004: The Beyonder: AMD Athlon 750Mhz, 256M Ram (Later 384), 20G HD, 32M AGP video card, CD-RW, 56K Modem (later Ethernet). Windows 98. Purchased new from Beyond Computer, LLC at a Cogan Computer Fair. Died, resuscitated, given to Slickpuppy, Died again, resting in state in his living room.
April 2004-Present: Emma: Intel Pentium-4 Celeron 2.7Ghz (later Pentium-4 2.8ghz), 512M Ram (later 1G), 60G HD (Later 200G HD), 128M PCI GeForce MX 4000, CD-RW/DVD, Ethernet (later USB-based wi-fi). Windows XP. eMachines t2798, purchased as floor model from Best Buy. Alive and running on the kitchen table.
Snik!: Intel Core 2 Duo e6600 (2.4Ghz), 2G Ram, 200Gig SATA HD, 256M PCIe GeForce 7600GT, DVD-RW. Windows XP [*1]. Purchased in parts from Newegg.com and built by myself. Currently in use.
The only sticky wickets in the current system are:
#1. Moving my mp3 library over, and preserving playcounts and ratings in iTunes. This may require additional software.
#2. Getting the IDE HD (backup) and the DVD-RW to both live simultaneously. This should just be some trial and error settings with the cables and maybe jumpers.
#3. Get one of those 5-in-1 card readers for MemorySticks and SD cards, as Snik is currently lacking. Minor minor issue for now, as Emma is still quite operational.
[*1] Well, Kubuntu Linux briefly too, and plans to dual-run OSes in the future.