Well I dont know what the current value of the "sunflower" imacs are but the clamshell ibooks can easily be had for under $250 or so on ebay. $350 should either get you a nicer one (firewire) or evan one of the aerly white, dual usb models. Check out the 500mhz 12" ones, they can be had for a song.
PB G4 15" 1.2ghz - Pismo G3 400 mhz - iBook G3 500 "Jukebox"
"SawSmurf" G4 500 - Quicksilver G4 Dual 1ghz modding...