I plan to buy a new 18' Bayliner with outboard to be used for cruising and water skiing (about 50/50).  Should I go with the 125 hp for the power needed for water skiing?  Or will a 90 hp be enough and save gas?  I appreciate any help you can provide.  This forum is really great.  I feel much more confident about buying a boat with the information I have gathered here.<br /><br />Steve