I made a driver board based on the BG2A board from Powerex. I haven't sent it in yet. It can drive dual 1200v 1200amp igbts no problem. Powerex says it works for anything they sell. It's just a bit over $100 in parts (including the price of the board). There are 2 drivers/power supplies. Here's a picture of it:
It drives to +15v and down to around -8v for shutoff.
This would work well for mosfets too. It might be a better choice for the SR controller, due to the absurdly awesome drivers.