Welcome to the forum.
Are you looking for a newer (auto focus) camera or would an older manual focus camera suit you fine?
The old Pentax K-1000 seems to be a popular suggestion for people just starting out. A sturdy, reliable camera that was once very popular, so it should be easy to find on E-bay or in a 2nd hand shop.
Same goes for the Canon AE-1.
Either way, a 50mm lens would be a nice lens to start with.