Dude. You *GOTTA* get an aluminum keyboard for that. I got one for my Dual 500Mhz G4 Sawtooth, as well as one for the iMac Core2Duo 2.0Ghz that my mom has. They rock, but your typing will be easier if you ditch that pro keyboard. also, I would suggest another mouse but a solo-button pro mouse. Get something like a Logitech Wireless mouse. We have an MX600 and it works nicely. With volume/Back/Forward buttons, you can configure spaces and expose nicely. Also, the Aluminum keyboard goes together nicely with the iMac.

Anyways, congrats on the score iMac600. Truly a worthy conquest to share with us. Now if only I could have gotten my MacBook for free, I would have loved it (But I got it payed off last month!!! Yay!!!)