Hey sisabdulax. A few years ago (well, maybe more than just a few) I was right where you are at. 16 ft 25 hp tiller steer with a Powerdrive 55 on the front. Thought I was crappin in tall cotton! Man, lemme tell ya! When I finally up-graded the Powerdrive with the I-pilot kit I realized how much fishin I had been missing out on! Finally I could re-rig a pole without looking up 3 or 4 times. I could reel in a fish and STILL be at the same contour line I was before. So, bottom line. Go with the Powerdrive foot control if that is the budget you find yourself in but start stashing some money away in the sock drawer for the I-pilot up-grade. Only downside to the I-pilot I've had is when you get hung up and are trying to maneuver to get your lure back it is much easier with the foot pedal. Good luck!
Get the I-pilot. The remote with spot-lock is something you cannot live without.
So what price range are we talking for the ipilot?