Yup - We do it all the time for case studies on the temp reduction on pumps, bearings, motors and gearboxes. Check out
www.flirthermography.com The company, FLIR is the major player. They have pretty cool systems. An intro unit can be around $6000 and they go all the way to $45,000. Keep in mind that the high price means better resolution. A typical inspection can take 30 minutes and you can charge $250 to $500. If you do it at a plant, a typical fee is $1000 to $2000 depending on the reslution and they accuracy and thouroughness of the report you write. FLIR can set you up as a small business but you gotta buy a unit.
I attended a training session a few weeks ago for the FLIR units. It was held at a hotel conference room. Took the high end model into the lobby with the rep and shot it at a few hotties. The resoultion was so good you could tell what style underwear they were wearing!
Emerson Power CSI also has a line but they are more into vibration analysis.