Help! After being a windows based computer user I am very very close to making the switch once and for all and buying an iMac G5 20" and am looking forward to it. I am planning on buying the computer off the Apple website using my student discount (especial now that you can get $179 off of an iPod) but just for kicks I have been looking on ebay and I have noticed that people are selling the iMac G5 20" Rev.A brand new for close to nothing ($1,000 to $1,200). I am just wondering if I should think about purchasing an iMac G5 Rev.A off ebay if it is brand new and being offered at the prices stated above? How much difference will I notice if I purchase Rev.A vs. the newest (Rev. B) version of the computer? I am planning on using my computer for everyday use such as surfing the internet, checking email, downloading music, storing photos, writting reports, watching movies, burning cds/dvds, and any other run of the mill task most people do in there day to day routine. Money is a little bit of an issue too so that is why I am asking. As always any and all feedback would be very much appreciated. Thanks!