It's just some really cool stuff. I'm going to add in some of that training this year mixed in with my bodybuilding stuff. I want to hit up some BJJ tourneys out here on the east coast before I compete again in 2011, so I'm looking for an airdyne bike. There's an army navy store right up the street for the mask... and my dad's a master at finding ANYTHING, so I'm getting chains, ropes, etc for cheap in about 4-5 months.