In my local camera shop, they have a new GF-1 with the 20mm 1.7 listed as 799. The manager is willing to let it go for his cost, which he says is $680. I already have en e-pl1 with the kit and 45-150. Is this body going to be an upgrade or downgrade from my pl1? I would most likely sell one body or the other, or both to get a newer body. I really just want the 20mm. What would you do?