OK my boss is kind of my car audio guru here and has been advising me on stuff I should get for my upcoming truck audio upgrade. He absolutely swears by JL audio for subs. Only thing is I just do not know which ones to get, and which amp to get with which subs. He suggested just doing a mono amp for the subs, which is kinda of what I was thinking. I am just not really sure which subs I should go with though. I know I want JL 10" s. Here is the link to the JL site. Which ones would be the best, in terms of cost etc.