Jencourt, with a budget of 20k you will never be able to get into a 20ft aluminum unless there's no motor or its old as hell. What I would do is call up Bellingham boatland and give them a budget with all costs in, to find you a 21ft striper w/a with a 150hp+ outboard (Yammy, Merc, Suzuki only). They will do a complete mechanical and survey on the boat before they purchase it for you. That is what I would do if I was going to drop 20k. If you are going to finance that 20k you can still make the arrangements with bellingham boatland and your local bank. Don't buy a boat bigger than 22ft unless you plan on guiding or you have deep pockets for the gas, I had a 24ft'r and the gas was out of this world. I got a 21.5ft boat and its about 40% less on fuel.