Window Tint site?
 

Is there a website, where I can check out the different % of tint? I know someone had it posted on the boards here somewhere, I just can't find that link now.

Also, if my dealer can do it, should I just have him do it or go aftermarket on it?

Aftermarket. Most dealers farm it out to the aftermarket anyway and then up-charge to make a few $$$. The ones that do it in-house generally don't use the highest quality film or installers.