Talisman Online ROCKS. I haven't had this much fun with a F2P WoW knock off in a long time. It really is fun, and very slick for a small download. Sadly, I think they are using the WoW engine literally, and wouldn't be surprised if they got sued over it lol
I highly recommend Talisman Online though, its got alot of content for such a small download, and offers all sorts of features more F2P games don't have - like an auction house (with actual items on it!) mounts, and other neat items.
My IGN is CheeseSlicer or BobDole
