MMA schools are coming about more and more due to the increasing popularity of the UFC and Pride.
At my school (just started last week

) they offer MT, BJJ, and Karate. I asked if I should focus on MT and BJJ or if I could do all three. I was told all three wouldnt affect anything because the MT and Karate are similarly taught. While they may be, the MT is completely different. I am only doing the two for now, and BJJ is really fun.