If you are after some small cats there is a little fish I saw at Tingley Tropicals at the weekend which looks a bit like a smaller version of a Shark Catfish.
I think its called a Pericola or something like that......They are only tiny little things and George's wife(tingley Tropicals) said they are ok to be kept in community tank.
I'm thinking of getting one this weekend.
bit of an obscure thread resurrection there!! lol
welcome to the forum