Thanks guys!
The original plan for this tank didn't include a mantis. The idea was to have a soft coral garden that I could comfortably work in and prune. I guess I can still do that... just with an element of danger now. Seriously though, after keeping my first mantis I was smitten, they are easily the most rewarding animal that I have ever kept in this hobby (I've never had a puffer though... their owners seem pretty attached to them too).
I have always wanted a peacock but my past nanos were too small for one.
I guess my new goal is something like:
"devote vast sums of time and money to the keeping of a single, small, invertebrate"
- Chad