Until about... maybe 2 years ago... I was doing everything internet-wise on a computer my dad bought pretty early on in the 90s. Running windows NT, for a short while 2000 then that crashed so we went back to NT. Computer worked fine, if slow as a mofo. No sound card. Connected through AOL dial-up. Still works now, but after a computer has been used for over 10 years it is time to upgrade. Or so I thought at the time.
Now I am working with a 4 year old computer on windows XP. One that refuses to accept a new video card, no longer works with the 1 gig RAM stick I installed (it tests fine, as does the port), randomly freezes, has some remnant program from AOL that pops up occasionally to try to use 60-96% of the processor, and that sometimes will turn on but won't boot up.
So I'll take Vista or Win7 or whatever, I've seen it all and I have learned great patience. Other than when I kick the monitor/tower.