That sub is great... and the REALLY low rumbling sub in the background works great too. I also like the distorted hats and rides allot.
With all that bass blasting away the kick does sound a bit burried though - it's something I continually have trouble with too :(. Maybe a little side chaining action and possibly doubling up your kick with one with higher harmonics may help. Dunno, like I said it's my Achilles heel too.
Actually dirty_bass seems to be good at getting his kicks through the mix quite well - suggestions from your corner?