Building a playlist with purchased music, no more Rhapsody

Found out it is pretty easy to do with windows media player. I just create a playlist in WMP and drag it over to the sync list on the right. I do have more questions about WMP, probably need to find another forum for that. It seems like I can only create 5 or 6 playlists. Maybe not a huge problem since I will use my clip for jogging and working out mostly and I can change up the playlists every so often.