More Ram Needed?

Any advance on $300ish for a 1 Gig stick of ram for my iMac G5? PC3200 DDR SDRAM i believe.. I have two 512 Mb chips at the moment. i would love to try a 2 Gb chip or two... :) i have tried two 1 gig ones.. not enuf.. really :)

 

Oh: 20,000 iPhoto's now :)

Done