hey guys im in the market looking for a new boat and because of the oyster shell in one of our lakes im going with an aluminum center/side console over fiber glass. looking to get anywhere from a 16' - 18' aluminum. we are using the boat for fishing and messing around on them hot summer days water skiing, tubing, wake boarding, etc. so in my size range, how big of a motor should i be looking for to do what i want to do? im buying used probably from craigslist (of course going to check it out and put it on the water before any money changes hands) because my budget is pretty limited, but im in no hurry to get the boat. i was thinking id need at least a 60hp and maybe up to a 90hp? what do yall think i need for my application? i dont want to be under powered ploughing through the water, but i dont want too much engine either. thanks for any help guys.