5.45 is cheaper and flatter shooting, this is a great web site, heres a link. http://gun-deals.com/ammoWhy do you prefer 5.45? 7.62 seems more popular.
The pre-ban Zastavas (AK-47) were the best I ever shot. They were crazy expensive for years, but they seem to be coming down in price lately.The Galil. If you mean 762 versions, the old Yugo imported by Mitchell Arms Pre-89. The best semi-auto AK ever. Even had night sights. This is not far from the prices they commanded before. Still spendy but a great piece.