I need to install a sub panel off of a 208 3 phase panel. The panel will only have single pole breakers in it and have a total load of about 60 amps. My question is what would be the way to go? Install a single phase panel feed from a two pole breaker in the 208 panel or just install another 3 phase 208 panel and feed the loads with single pole breakers.

Recomend you install a 3 phase panel and try to balance your loads as much as possible.
Have worked on too many place that went cheaper and caused some power quality problems later.