A good all-round boat for bigger guys is the wavesport Y. It will allow you to surf some, run the river (although it is somewhat slow) and do some creekin. I'm sure that there are other boats as well - gus, H3, etc.
There are also some play boats that would work for you but at our weight I don't know how much creeking I'd want to do in a play boat. The big thing is to demo, borrow and try as many boats as you can fit in.