TCCD is right up there with BH5 (not the UTT crap) as the moment of crowning glory for DDR. Luckily I snagged a set of PC4800 PDP Patriot last week. I've used these before and my experience was quite a positive one. TCCD has never failed me thus far. A sure winner indeed!
The only TCCD you can find is probably from OCZ or GSkill. Patriot have stopped their DDR XBLK line and there is no mention of sets from PQI (not the best) or others. You may be able to go out on a lark and pick up a 2-2-2-5, 2.6V set and it would be some TCCx. Since everybody is moving to DDR2, you might find these very hard to come by.
If you have any questions, ask Mr.Reefa. He has over 300 Gb of RAM (of which at least 95 Gb are TCCD).
Edit#
You can find TCCD results here:-
http://www.ocforums.com/showthread.php?t=379317