There are many former linguys on this board. I worked at an uncontrolled field during my senior year in HS until I went to college. One of the best summers I ever had. I got alot of free flight time just being around the airport which helped me finish my instrument before heading off to college. You'll meet alot of contacts which will help your flying career or almost any other career.
Laywers, Doc's, Accountants, engineers and the rest all have airplanes. Thats how I gota job as an engineering internship which inturn lead to an oppertunity to get my Comm, Comm Multi and CFI cheap (I wouldn't have been able to afford it otherwise) which positioned me with all my ratings by college graduation. Another airport contact from my lineguy days gave me a lead which landed me in the rt seat of a navajo with 350tt, 3 days after college graduation, my first fulltime pax flying gig.
I may be alittle biased but I'd recommend a small FBO/flight school at an uncontrolled field that has a good group of airport bums hanging around all the time. Also try and do your ratings there, they may give you a discount and in the end since you already have a work histroy there getting an instructing job will be easy.
Also if a job isn't available right away keep intouch, as many lineguys are working between college semesters so by Aug these guys leave and a position will open, thats how I got the line job.