There is also the sponge (still available in Canada anyways) and the female condom (although I've been told it's comparable to fucking a glad garbage bag, which doesn't exactly sound thrilling). I wouldn't reccomend the "withdrawl" method tho, as people who practice that tend to have a name.. we call them Mom & Dad.
Here's a decent site fyi:
http://www.plannedparenthood.org/bc/