er.. actually I love Vista alto now I am runnin XP after an annoyin error occured on da Vista OS.. anyway Vista serve me pretty well & I might install it again later, UAC feature can b turn off so no big deal, I enabled all eye candy features & it stil run smoothly on my Athlon wv 1G ram and I develop alot on web services wv IIS, SQL Server, Visual Studio, Adobe products, Video editin, Games, .. all runnin fine, some ppl might complaint Vista is memory hog but actually it just dump alot into Ur RAM, but tats how Ur RAMs work rite.. so I think its OK cos it manage da memory well, wen Im in development environment my system always goin up to 80%+ memory level contantly, usually my Winamp wil taken alot of my cpu resources ..but watever le I stil LOVE it for my MP3s uhuh, for Mac I think I wont hv chance to use it