G4s? The cheapest one (a Power Mac G4/533) is $200.

Also, I know that G3 iMacs require maximum VRAM (6 MB) for acceptable OS X performance, however NO ONE IN THIS COUNTRY ( 8-o ) sells VRAM.

A bit offtopic, can someone access Headgap's store? It always times out here, and downforeveryoneorjustme.com says it's up.