Hey there, check out etropicals.com for their "build your own" reef janitor special. 60 bucks of cherry picked stuff and shipping is free, it is a great deal, and their critters are quality. With this affordable package you can avoid the marketing schemes of fictitious 1 snail/hermit per gallon rules in those huge "packages"- go slow and build up the critters according to demonstrated need in the tank, to avoid starving them.
I personally would stay away from most hermits, as they are opportunists, or go maybe 80% snails, 20% hermits, staying away from the larger hermit species. Get a fighting conch as well, they are great stirrers and fun to watch! I called mine "Dumbo"- you'll see why! :wink:
Good luck...
Peter