Attached Link: http://www.castironflamingo.com/

Grab Grouper from cast Iron Flamingo (link provided) & check out the tutorials for one of the best ways to get poser figures into Bryce. Grouper uses .obj files which I've found is the best format to export to. (is it better to render in other programs or within Poser?) That's a good question & you'll likely get 100 different answers from 100 different people. Sometimes it's better to render in poser other times it's better to render in Bryce Vue or any of the other 3d rendering programs out there. I think that's about the best answer I can give you ;)