well i went to the only shop that carries them, and looked at the thor's, forma pro's and t6's, they didn't have any t4's. the t6's were definitely more comfortable for me than the forma pro's, and seemed to have a better buckle system. they just seemed to work a little easier on the t6's. a bit more than i wanted to spend, but after trying on other boots the same price range as the t4's, there was definitely a big difference in fit and feel. the dude i was dealing with said that would be the case with the t4's as well. so... i think i'm gonna spring for the t6's. sounds like you can't go wrong with alpinestars, and at least i'll be upgrading from my original plan and getting better boots.
Thanks for all the input guys it really helped me narrow things down and find what's right for me. by the way, the shops price was $240, which seems reasonably fair compared to anywhere else i've found.