I've seen the drummer of White Lion has done this and now I see that the drummer of W.A.S.P. did this. They have the 2 bass drums at the extreme ends of the kit so it's open air in front of your feet. Then I guess they must use 2 double bass pedal sets so they have driveshafts to each bass drum. Is there a name for this arrangement? Here is a prime example. http://www.youtube.com/watch?v=7g-JT04j-co