All the time. Got a sick V-MODA headset that pumps the bass so well I can feel it in my spine. It's probably the best feeling ever. :icon_bigg Pendulum's my favorite. Immersion is probably one of the best albums I've heard in a long time. A couple of the guys from Pendulum are also Knife Party, which is another favorite (I think Knife Party technically classifies as dubstep, but they're still awesome).
Not the biggest fan, but I like a couple Dj's that have dabbled in it. Zion I with Amp Live is the best example I can think of that I actually like. There are some songs by Dj Krush and Nujabes that are close but not really Drum and Bass [youtube]vyYvXV77k34[/youtube] [youtube]0ZUFxgvk0n0[/youtube] This song is actually one of my favourites of all time and it's definitely drum and bass
I love DnB. I listen to it quite a bit, second to trance. I don't really care for DnB that's too crazy, I like the more mellow stuff. Something along the lines of Brookes Brothers, Logistics, and Camo & Krooked.