I too am in the market for an IR camera and have been researching both the Fluke and FLIR models. I have talked with a few different people who use them now and they all have Fluke cams. One, however, stated that the bundled FLIR software was better that the Fluke software. A FLIR rep came to one of our ASHI conferences and had a number of models for demo. The new Flir b60 has a replaceable battery with stated 5 hr life (likely more like 3-4), PIP fusion and 180x180 resolution. This is better than the similarily priced Fluke cameras. It seems all the b-series (b40, b50 and b60) cameras have longer battery life, are lighter and have PIP fusion.