Good luck with your decision! My two cents...I have a desktop and a laptop, both dual boot with Vista SP1 and XP SP3. Both machines have 2 gb RAM - both were upgraded because Vista is piggy slow on 1 gb! The desktop is AMD Athlon 64 x2 @ 2.45 mhz; the laptop (HP) is Intel Core 2 Duo @2.1 mhz.
On both machines, XP is "quite a bit faster." The reason for the "" is because I can't quantify the speed difference - XP is just faster - on almost every task. Vista, however, is greatly improved with SP1, particularly with regard to boot time and file copying, and the difference in these two areas is much closer than it was before SP1. Vista is also "smoother" for me - again, can't be more specific. My only Vista "casualty" is an old Epson scanner that Epson won't write a Vista driver for and some software that needed upgrading anyway! All in all, it would be good for you to be able to experience Vista for an hour or so - it really, for me, is a subjective, choice issue. Having said that, I use XP most of the time!
If you go with Vista, I suggest the following MINIMUM specs (may not agree with published specs or other people, but, trust me, these are the minimum you want for a good user experience!): 1) RAM - 2 gb, min, and remember, 32 bit Vista can't utilize RAM over approx 3.5 gb; 2) video - discrete card with 512 mb memory; 3) processor - AMD or Intel, dual core @ 2.1 mhz. Don't even think about Vista with 1 gb or less of RAM!
Finally, a lot of the complaints of Vista were based on MS lying about the minimum specs required and early on driver issues - not available or buggy. I don't know what you do most with your computer, but, I suspect that Vista would be just fine! If you can, try a good running Vista machine out before you buy.
This post has been edited by drmsucks: 25 June 2008 - 09:27 AM