Mark Beasley, instruments instructor at BCFT flies for the British Antarctic Survey, this summer he was based at Halley - I got to talk to him lots (I'm the comms manager here). He even let me fly a twin otter for an hour or so, it was amazing...
The BAS pilot job is where I'd love to end up, but you'll need 1500 hours of multi engine so it's going to take a while. I'm distance learning with CATS, so the theory should be sorted once I start flying.
Other interesting jobs I've seen while looking around is working for the red cross in Africa dropping supplies and taxing doctors around, geo-surveys over Greenland, pilot for a drug baron in Columbia etc. I'm aiming for a bush job once I get the quals, the pay wont be anything like an airliner pilot, but I'm sure it'll be more fun