There are Samsung Galaxy S Wifi 5.0 devices for sale on Amazon. This is the international version (runs on Froyo). Prices start at $238 with $5.99 shipping.
Regular price for the U.S. version (runs Gingerbread) is $269.99 (free shipping), but the international version still costs less. Not too much difference in functionality, especially since it is possible to upgrade the OS in the int'l version from Froyo to Gingerbread.