You’ll need at least 2 gigs of RAM to run vista (1 gig for xp), and probably at least 256 megs of video memory (which is integrated on your mother board).
Not to derail the topic here, but just because a lot of people read this board, I gotta dispute with ya just a little cyberguy.
This may be of interest to people who are considering Vista. Sorry Nosferatu - I don't have any ideas for you at the moment - forgive me for hijacking your thread, btw.
Vista will in fact run with 512MB of RAM. Absolutely. Period. Now, I will confirm that it won't run well (and that is a relative term) without at least a gig, but it will run and let you do the basics. Also, the 256MB video req. you listed is just flat out wrong. 128 is the min. and that will run all flip effects, etc.
I know this because I just did 3 test installs for our school with different configs. Version I have been installing is Vista Business, which has higher reqs. than Vista Basic that Nosferatu said he was using. I was getting very positive and perfectly acceptible useability results with P4 3.2Ghz, 1GB RAM, and 128MB video. Taking out 512MB auto-turned off the Aero interface stuff and slowed the machine, but it still was usable. I was not able to force the Aero effects on for testing with only 512. At that point, physical memory usage jumped to 58% with nothing open and the pc just sitting there, btw. Having IE and Media Player both running took it to 79% used. I will say that while it will run with only 512, I don't feel at all comfortable with the idea of doing much serious multi-tasking with that amount of RAM. It depends on how a person uses their machine though.
I also had zero driver issues, which was not at all what I expected. In fact, it is the first OS that I have installed at the school that didn't need extra drivers for the machines. Network printer setup was brain-dead easy. Literally 3 mouse clicks installs a network printer. Nice. Install time was roughly half of what it is for XP Pro. Considering that our version comes on 5 CDs (not the 1 DVD of regular Vista) as opossed to the 1 CD of XP, I don't know how MS managed to do that, but I like it.
Just thought I would pass that along to anybody who is hearing horror stories about Vista.
FWIW, my impression of the OS is that it is very intuitively laid out. There are many nice touches that I picked up on.