The Panasonic GH2 seems to have an almost cult-like following. Die hards from previous GH1 models are lovin' the upgrades the GH2 brings to the table. The great thing about these Micro 4/3 cameras aren't just the ability to adapt any practically any lens, but also the quality of Video they provide. Unfortunately it's still a tough camera to find, and always out of stock. This slow availability of cameras is not helping them gain more market share, which I see was a problem with the Nikon D7000. Still, if you have to have the Panasonic GH2 (as of yesterday), there's a few listings at the big auction site, with a very minimal markup.
Once you've picked up your GH2, you'll want to get a wide angle lens with good aperture. Best bang for the buck is Panasonic's 20mm Pancake lens F/1.7. Great lens, fast, and sharp. I just purchased one (I know i'm late) and it's been a top performer for photography. I'm still not a fan of Panasonic's focusing for video, but the quality of this wide lens is exceptional.