naaman15,
Have you looked on this site under Recruiting Tips? There is a whole section devoted to recruiting... also, follow the Time Line...and read all the related articles. Grades are pretty important! Talk all the pre-ap or ap classes you can handle (and do well in), as those are more "college prep" than regulars.
Are you playing summer ball at the highest level you are capable of? And, if possible, go to a PG event or 2.