OBJ files are not supported in the PLE, which I think is a bit stupid, considering it is a Wavefront file format, and Alias was, at one point, called Alias|Wavefront. Surely it ouldn't be too hard for the guys who code the PLE up to include an OBJ importer (without the export part, obviously).
Cheers,
Malcolm
'England Expects That Every Man Will Do His Duty' - Vice-Admiral Horatio Lord Nelson - Battle of Trafalgar - 21st October 1805