K mount pentax lenses

Hey all,
I now have a Canon 350d (finally) with the kit 18-55mm, and I'm learning about all the different options for shooting pictures, but the standard lens is quite limiting. I'm not worried too much about quality at the moment, as I'm trying to learn how to take a picture before I bother buying some proper lenses, but I have access to some old pentax K mount lenses in various sizes and shapes that I'd love to have a play with. I've done a bit of searching on google and apparently you can get adapters to fit them to an eos mount, so long as it's an aps-c type, but ebay (supposedly where they are available) doesn't have any. Is there an easy way to aquire such an adapter?
Thanks,
Josh
I now have a Canon 350d (finally) with the kit 18-55mm, and I'm learning about all the different options for shooting pictures, but the standard lens is quite limiting. I'm not worried too much about quality at the moment, as I'm trying to learn how to take a picture before I bother buying some proper lenses, but I have access to some old pentax K mount lenses in various sizes and shapes that I'd love to have a play with. I've done a bit of searching on google and apparently you can get adapters to fit them to an eos mount, so long as it's an aps-c type, but ebay (supposedly where they are available) doesn't have any. Is there an easy way to aquire such an adapter?
Thanks,
Josh