Im trying to decide which TV i actually need. I want a plasma because my living room has no lights other than a front window but if im buying a tv I want to be able to watch 3D. Is there a difference between these two models when it comes to 3d quality. I saw that some of the setting on the ST50 are a bit more advanced which might be helpful and I also read that the ghosting effect was more apparent in the UT50 but it seems the big difference in the two models is how they perform in brighter rooms which is not my concern. I live in OKC so there are no stores that have both tvs in stock to compare, has anyone else been able to test the 3d on both sets?