Just curious but why do you think you need calipers? If anything you'll just want to rebuild them which won't cost much.
Since you aren't going to be doing any track action I'd stick with something close to OEM like what you'd find at any auto parts store. If you want a little more stopping power you could upgrade to something like Powerslot rotors and Axxis Metal Master pads.
If you want a complete set of rotors, pads and SS brake lines check this out:
http://www.turboimport.com/catalog/promo.htm
These are what I picked up.