For a limited time, Groupon members can take advantage of a 40 percent price cut on the Panasonic Lumix DMC-LZ20K 16MP digital camera. It carries a list price of $250, but has been reduced to $150. That $100 discount makes this about $14 less than the lowest price we have seen anywhere else. Free shipping is included, and the camera features 16.1MP resolution, 21x optical zoom, a 3-inch LCD, and built-in flash. One possible downside is that it takes AA batteries, where most digital cameras these days include more powerful rechargeable batteries though many will see that as a plus rather than a