First computer my family had was a Mac until 1991.
First family PC is a Epson - has Win 3.1 - back in 1996 (no, we didn't have Win 95).
Then 2nd family computer is AST - has Win 98 SE - in March 2000.
Next is my own computer - a Dell Dimension 8400 - in July 2004. It had Win XP Home SP1a, then upgraded to SP2, then got XP Pro SP2 in April 2005.
Then the family got a Dell Dimension 3000 (*scoffs*) in July 2005 that has Win XP Home (still have it). Later, my mom got her own computer (Dell Dim E520 that has Win XP Media Center Edition 2005 with Update Rollup 2) in July 2006 because she got fed up with my brother playing CounterStrike on the Dell Dim 3000, lol.
Then I got Win Server 2003 Standard Ed 180-day trial in June 2006 before realizing that I had to make a partition on the HD to have 2 OSes, so I did it the long way via formatting the HD with the XP Pro SP2 CD.
July 2006, I got the Win Vista Beta 2 (build 5384), and reformatted the 2nd partition that had Server 2003 on it. I then got Vista RC1 (build 5600) in October 2006 and kept it until . . .
January 31st, 2007, when I got both Win Server 2003 R2 Enterprise (w/ SP1 until I updated that to SP2 last month) and Win Vista Business - planning on updating that to Win Vista Ultimate and then getting SP1 in fall 2007. (I'm now tri-booting - see my signature.)
I have a self-built computer from my PC Configuration (spring 2007) class that has both Win Vista Business and Linux Ubuntu. I'm planning on swapping the hard drive, memory, and vid cards from the self-built 'puter to my Dell Dim 8400 then use the self-built comp as a server. Big project for me this summer, I can predict lol.