I'm using Fairchild HRF3205 N-channel MOSFETs, which are rated for 100A (8 mohm RDSon).
My drive can't actually handle that kind of current because of other considerations, like wire size, terminal ratings, etc.
That is want I meant when I said designing a drive of 10+ amps is not easy, even if some folks think that's baloney. Let me rephrase... It's not easy for us mere mortals.