A coworker is offering to sell me her daughter's iMac G5 for cheap (like so cheap I am wondering why!), and I would let me daughter have it (she wants to start blogging, doing Kid Pix, etc). Anyway, what were the base specs on the G5? Is it basically upgradable if I want more RAM or hard drive or a different cd drive? Could I use the new Airport Extreme n with it? She also said she thought it was red--did G5 have a color option? Thanks!