My son has his own iMac G3 400mhz with 576mb RAM. This machine was perfect for his CD-ROM based games. Now, he is spending most of his computer time on flash-based web sites like Club Penguin and Webkinz. The G3 iMac is very slow on these sites, both under Safari and Firefox. Is this just a limitation of the G3? Would a G4 do any better? Or maybe more RAM? Does Adobe Flash like processor or RAM?