as new as I am to this forum I cant let this go by. Do your research 1st. Determine what you want in the boat. Then look in ads in your price range. Be sure what you are getting.
I just bought a 24' cat with 2 300hp mercs. This boat was set up for total speed at the expense of everything else. I always have wanted a tunnel and have moved since to an ocean environment so figgured a cat would be perfect. Wrong answer. I now have an ill mannered boat that I will have to put another at least 2.5K into to fix to detune it to make it satisfactiry to the wife. Yes it will still go very fast but not as much - but who cares when you start at 110?
Do your research and ask lots of questions before you plunk the money down - this forum is excellent.