It appears the Asus P6T SE is a shred version of the ASUS P6T board by removing SLI support (so CrossFire only), and downgrading the capacitors and removing a couple of needless features.
I think all the newer revisions/versions (probably made in early 2010) have the higher quality capacitors (red color).
I was searching online in regards to the differences between Asus P6T and the P6T SE. I was also a little bit hesitant to purchase the P6T SE in that I may get an inferior product in terms of construction wise.
However, I am happy to say that I purchased the Asus P6T SE at my local Fry's two weeks ago and all the capacitors are red, unlike the half purple & half red in the earlier pictures (for example, NewEgg shows red & purple as do pictures of the original versions last year).
I wanted to let people know that they are indeed red, and the motherboard is working beautifully. I believe the main differences between the P6T SE and the regular P6T are that the P6T SE has lack of SLI support and removing a few other small features.