What pickup would be best on this guitar?

ok so before i go on look at this guitar its the stratocaster on the right http://www.facebook.com/photo.php?pid=1784932&id=637214544 if for some reason you cant see that its a 1974 Ibanez strat chalenger i think so i want too know what would be the best pickup too put in it but i dont have alot of cash, and i dont like the heavy metal sound pickups any suggestions?