I know I come out with this every time one of these threads comes up but that is because I think it is so important. I am a firm believer in getting the right instructor as so much depends on how they run the course and test you. This is especially true when you're looking to move forward as a technical diver, you need to push yourself now in training not later on when the manure hits the fan and it's too late.
You may find the following 2 links helpful if you haven't already seen them, they are articles from the Chris Boardman series in Diver magazine. I have done these courses with the same instructor and can personally vouch for the "thoroughness" of them. Some things may seem OTT but then much of the course is designed to test your capacity to deal with task loading under increasing pressure.
http://www.divernet.com/technique/1101tecrec.htm#top http://www.divernet.com/technique/0702tdi.htm#top
From what I have read on the boards recently we have a couple of really good Tech Instructors here on YD who I think may give you a similar going over, if not better, but I have not had the opportunity to train with them myself. I'm sure others will give them glowing recommendations.
Hope this helps.