I was at Target the other day and I saw they had a 1gb microSD card for $10. Not a great price, but it came with a MiniSD and full SD card adapter and a MicroSD Card reader.

I have a MicroSDHC 4gb card so i tried it in the reader and it worked like a charm. So I have a spare card, adapter, and a microSDHC reader for $10, def worth the money!