Donald Smotherland (or Keifer, for that matter) is pretty awesome. I agree with Tim Hurtin' or Dave Reckoning/Wreckening.
Also everything April and villainelle said. Men's derby is growing by leaps and bounds, but many/most men's leagues are affiliated with women's and enjoy coed practices and scrimmages. Derby is expensive, so sharing practice space and time works out! The true coed leagues generally skate under a different ruleset (now called MADE), which features alternating periods of men and women playing, but a cumulative score.