no unfortunately, the taichi didnt undergo the same make over the bigwater 745 did. BTW that watercooling is utter and complete crap having massive amounts of pump failer not to mention that 1/4 ID is not going to be sufficent to cool your X1900XT and CPU. The raditor is also complete and utter crap.
Sorry i dont usually bash people's equiptment but i just thought i should express my complete disgust in thermaltake cooling products. Its true tho, they have some respectible cooling products like the venus 12 and Big Typhoon, but as for watercooling, GAH id rather go with evercool watercooling kit then a bigwater kit.
I built my dad's firm a quad opty server using the tai chi however. That side pannel and holes make adding a custom watercooling kit a simple breeze. The side grills i dremeled away and added some nice fan filters. 2x120 radiator fits perfectly with a D5 pump next to it. a Rez will sit pretty on top of the D5 pump and tube work is a breeze since ur mounting the entire system on the side panel.
Save up some cash, then gut your old watercooling set and add a custom. You wont see any noticible decrease in temp by adding that block to the loop and your better off getting a VF700 instead.
Also keep a VERY and i mean VERY watchfull eye on that pump. My friends failed 3 times b4 he got sick of his bigwater setup and decided to go back to air.
EDIT: OOPS didnt read snerps statement correctly. Yes the TAI CHI is 3/8 OD - 1/4 ID hence why i said its complete and utter CRAP!! sorry had to leak that out once again.