Hi Becks,
I have heard gold coins of the 1oz kind are the easiest to buy and sell. The 22 karat Kruggerrands and Britannias are well-known, however there seems to be a market for the 24 karat Australian perth mint coins and even the ultra pure .9999 Canadian Maples.
Having said that I have yet to buy gold (except via my egold account

), I have been close on a number of occasions. I am currently investigating a way of getting hold of gold coins at a considerable discount, will let you know if it is OK.
Regards Rhys
"I'll get out of my job if it kills me!"