The mags are 36 dollars (or 26? Sorry, I forget) on WGC- for Marui ones, they work too. They carry them at most retailers.
Anyways, Sam0182 (look at some of the previous posts, he's there) is planning on bringing some of these in, in a few months.
Check the review of him or ask Yanchan/other buyers about his reliability- he's a great guy.
Anyways, there's a compensated version of this gun, and special-editions (darker metal, and simulated wood grips designed to look like the TM Biohazard) in semi-auto and select fire.
Just took an assload of pictures.
They should be up tonight or tomorrow.