I listen to just about any OST that I like, or at the very least select songs from one. I started out many years ago listening to original Final Fantasy soundtracks as well as the Chrono series. Now I have music from all sorts of genres on my iPod. I usually listen to music in my car, but I'll also play it at work or home, like any kind of music.

I actually very recently made a play list full of beat driven music. Along with "normal" music, it has songs from FTL, VVVVVV, Super Hexagon, and bLiNd's "Within the Giant" mix from the FFIV OC remix album.