I would suggest just putting up an ad on a newsgroup somewhere. I got it that way, for about $25.
It works fine on my PIII-600MHz, GeForce DDR, 256MB RAM, SBLive!, WinME.
WC2 gave me a few BSODs but they were never reproducable and always during the story, never in flight.
Unfortunately, with the upcoming release of WinXP, all Wing Commanders may be broken (KS and above). Someone at MS claimed to me they are going to fix that (KS at the least) in a later build, but I have to see before I believe.
Looks like I'm going to have to purchase a dedicated WC computer.
To get back on quotes, I really like the quote that's in my sig. Maniac says it at the beginning of WC3.
I like it because it means you can't trust half of mankind.