well last week, i got feed up with my pc while trying to get it too boot off the hard drived I had just installed p onto. i got so mad that i tested my bank debit card at apple.com store and a refurb 1.8g5 well much to my surprise it worked (i have tried to buy stuff online before and it didnt work. so now I havea g5 heading to my house. i havnt decided to keep it or not. If i do, i have two sticks of pc4000 kingston hyperx 512mb sticks never opened, that I would like to install. Will the g5 take these and just down clock them?