My 98 lsc has a sticky front right caliper.....sometimes its fine, but then sometimes it will stick and cause all sorts of vibrations in the front end, as well as causing the wheel to get extremely hot on that side. Ive had many cars where they ahve siezed, but never a car where it was off and on like this. Any thoughts? could it just be dirt that maybe i could clean? or should i just go out and drop some bucks on new calipers?

Go ahead and spend the money, and do the other side at the same time. You'll end up replacing soon anyway, and you'll have new pads on both sides. Rotors also if worn or warped.

If your going to change calipers. Look into cobras. You will need 17" wheels but it is completely worth it.