Shouldn't be hard to fine a good cooler for the M11x since it's so small, I'm having a hard time finding one large enough for my M15X but not so oversize that it looks bad. The problem with the M15X is that the chassis is so large that it almost requires a cooler designed for 17" laptops.
You think you are having a hard time.. try finding one for an m17x lol..
Due to it's unique design I think I will have to build my own!
If only I could find some aluminum in the same red color....