You won't need a "fast" card (by fast I mean the write speed) but I'd recommend getting a decent brand just so it's more reliable, don't want to lose your photos because of card fail!
Something like this will do fine:
http://www.7dayshop.com/catalog/product_info.php?cPath=777_6&products_id=107197
7dayshop don't sell fakes (plenty of fake cards about on ebay), but they do take a while to deliver (they are based in Guernsey I think?!

) however if you're not in a rush, I'd highly recommend them as a seller....