FINALLY an update!!!
Both new fish have been doing really well for the past month, the wrasse is a bit of a butthead and likes to chase the dartfish back into his hole, but doesn't appear to be hurting it and both seem to be getting plenty of food. I expect the 58g will be plenty of territory for both of them.
I moved the halides over to the 58 today and I am really excited...it's gorgeous. I was pretty worried as the bulb was firing up, as it took about 3 minutes before it was actually brighter than my actinics, but it looks great. Today I will be moving all of my corals and both fish over to the 58, as well as doing a long, long delayed water change. Pics will be up in a bit!