I am not planning on ever upgrading to Vista at this time. From what I have read and seen Vista is much slower at unless you have 2 gigs+ of ram and a really fast CPU. I spend money on high end parts so that I can run PS, Maya and Games fast, Not the memory hogging OS running in the background.
As for Aero, yeah it looks cool but Macs have had that stuff for years and if you don't like the silly XP themes then use "Utheme patcher" it's free and only takes about 5 megs of ram, plus you can choose from thousands of themes from deviant art etc.
Any way my next OS will be Mac leopard when it comes out, it's 64 bit, looks cool, no driver probs, can dual boot XP, and best of all no anti virus apps running in the BG taking up precious RAM. Why can't Microsoft get their act together and make an OS that looks cool works even better than it looks and runs efficiently?
Well that's my rant for the day.
No offence to anyone who just bought Vista I hope that it works out great for you.
RAM disk is not an installation procedure.