That's cutting it close on Vista. I gave 1gig a try and it did ok, but it didn't really start 'flying' until I upped it to 2gig. Contrary to what many have said, it's a very solid running OS. The only thing that would deter me from using it as my primary OS would be the DRM crap.
yea, I Upped my memory to 2GB's and it's very good... actually I don't even actually have 2GB because 128MB's is being used by the onboard video... so i have 1920MB's of RAM but it works very good. ;) even though I have onboard GeForce 6150 video(I will be getting a better video card soon, I want to wait for the mid-range DirectX 10 cards to come out) onboard Video is fine for now, I can watch DVD's and do basic 3D Modeling just fine with this card not hurry. ;)
The DRM stuff, ehhh... use AnyDVD... what DRM... IF you don't like Media Player 11 Don't use it use Media Player Classic... If you don't like the other stuff.... its "software" fix it the way you want.. sheesh...
Oh, also I had my Swap file on the first partition of a second hard drive... that helps a little bit. ;)