hey! this is my first post here even though i've been coming here for a while. i've wanted an apple computer since the clamshell ibooks and i'll finally be switching about August, and I had a few questions abou the iMac G5. 1.should i buy from the apple store (not online) or compusa. does it matter? i ask this b/c the nearest compusa is about 20 min away from where i live while the nearest apple store is about an hour away. 2.how long does the iMac take to turn on (when it's off, not when it's sleeping) and how long does it take to shut down completely. i was wondering about this b/c my computer i have now (it should be in my sig) takes about 5-10 min to start up and shut down. 3.if i bought 2gb of RAM from crucial.com is it hard to install. i read somewhere that all you have to do is remove 3 screws and open up the computer, is it really that easy? 4.is tiger a hard os to learn. all of my previous computers have run windows, so i don't know what to expect. 5.will the iMac be able to handle any pro apps. i most likely won't be doing anything involving video, but maybe music. sorry if these questions have been asked before, i've tried looking for them. i'm very excited about the thought of getting my first mac o yeah, and is there any apps that i should definately get when i buy my iMac.