Rock instrumental, i usually go for Ghosts and vodka, or Saxon shore
saxon shore
ghosts and vodka
electro stuff, Shigeto, or gold panda
shigeto
gold panda
more classical stuff, yndi halda, or ludavico einaudi
yndi halda http://www.youtube.com/watch?v=6VuJBCscmZI
ludavico einaudi http://www.youtube.com/watch?v=jhuGfmoIv_M