hey toddy,
you should be able to get an a500 from ebay from here in the states or canada we all got the same power and stuff. i got an amiga 1200 from canada a couple of years ago. there is also amibench (i think i dont go there much) and here on amiga.org one of the forums is for amiga on ebay and not on ebay. also posting like you just did can get others who may have just such a machine that they will sell. i got an a3000 awhile ago here on amiga.org.