The iBook is a great place to start. I obtained a few broken iBooks from friends and fixed 'em up, painted them and just messed around. I am relatively new as well compared to most on the forums but you gotta start somewhere right?
iMac G5 rev b. 1.8 2gb ram
Red iBook 14'' 800 Mhz G3
12'' iBook 1.07 G4
12'' iBook 600 Mhz G3
3.46 Intel Core Duo 2GB ram 500 HD
24 inch dell flat panel
Dual GeForce 8800 GTX in SLI