ati prochargers are nice, they come standard with an intercooler,
www.speedworx.com has them the cheapest I have seen for a little over 3k. also the novi 1000rr is reallly nice, their mounting bracket is the best I have seen, which helps when trying not to throw a belt!! Though you may be able to get the s/c cheap expect close to a grand maybe more for installation (if you dont trust yourself) as well as dyno tuning! hope this helps!
chris