Is there a particular diffuser to stay away from, or one that sets itself beyond the others? I've had a Sto-Fen in the past that worked fine, but now that im looking to buy a new one, I wanted to make sure I didn't kick myself down the road. On a related note.. wtf is up with Cameta throwing in a crapload of stuff with their diffuser? http://cgi.ebay.com/STO-FEN-Omni-Bo...photoQQcmdZViewItemQQ_trksidZp1713.m153.l1262 I just thought that was funny. Anyway, thoughts?