I am glad you guys know how to read articals on the internet. I don't go into MH threads and tell people what to do because i have no experience with them.
There are many tanks out there running t5 that are well over 24" plus the OP didn't even say what he was planning on doing with the tank. For SPS here is a great thread to look at for examples:
http://www.reefcentral.com/forums/sh....php?t=1083336
If you want to go t5's, go with them and don't let the hard headed die hard MH lovers tell you that they aren't good enough.