Yeah superboom, that's what I used. Last time I was messing with it I exported them as OBJ files but they didn't take the materials.  This time I used "Send to Studio" and no problems, other than the whole losing the group issue.  Sorry, don't have any actual tips  cos overall I was happy with what it did for me :-s

But bridges are a sore subject - I wanted to use the Photoshop bridge and spent silly time on that.  My PS is a 32 bit version, Studio is 64 bit.  Install the 64 bit into the PS directory, it shows in Studio ok but not PS and vice versa.  And the 2 versions don't talk. Meh. (Sorry, went a bit O/T there, it really ground my gears last night lol)

When you starve with a tiger, the tiger starves last.