Get as much RAM as possible if you go Vista. Also expect somethings to just not work. It seems even though Vista was on the horizon for years major companies still have not written drivers for it. At 1st I hated it because it was so different but now I am liking it quite a bit. I do run into low memory issues but I am running the newest version of dreamweaver and taxing my machine with pdf's and mutliple websites up constantly. Just get as much RAM as you can.