1) Olympus E-P2 with 17mm f/2.8 lens for $609 at Amazon (Click here)
2) Olympus E-P2 with with 14-42mm lens for 621.73 at Amazon
3) After Amazon also BHphoto offers the Panasonic GF1+20mm lens for $599.
4) Panasonic GH1 with 14-140mm lens for $979 at Amazon.
5) Panasonic G2 for $549 at Amazon and BHphoto.