I personally like the shimmer effect of mh's but t5 will give you awesome color. i started out just wanting a fish only, then went to softies, then low light sps then higher end stuff but if i was going to go with anything other than mh i would go with t5. they arent very much more than pc and you are not limited to what you can keep in the tank. plus the actinic on a t5 fixture will make the colors stand out much much more than on pc's....
......just my two cents......
......just my two cents......