I was really curious to read about this type of heating, then I read your comment. Quickly imagegoogled the term and found that this is the standard in most of north/west Europe.
Here in the Netherlands 1 liter of gasoline was very low a few months ago at about €1,55. Now back up to €1,60 if you do your best or €1,78 on the highways. Portugal is not that bad :)
I use the Sony WH-H900N (h.ear 2) and absolutely love them, since I bought them (and a second set for my wife recently) three different colleagues ordered one after trying mine for < 10 minutes :-)
most of the other game dev dirty trick on gamasutra are good value -- the "(s)elf-exploitation" one from Jonathan Garrett, Insomniac Games is particularly awfully clever: