I agree with Dingus on the Krimson Kustom evercool VV boxmod. I had the one from MV, and the box melted on me because it can run too hot. I know some like it, but I sent mine back, and got a KK. The KK evercool is built much better, and, IMHO, is a much better buy for the money. I believe they are $55. It will be built just for you, according to your specs. It looks the same, but the innards are superior quality.
I haven't gotten mine yet (it's in the mail), but the main reason I ordered one, is that from what I read, the KK's shouldn't have any trouble with dual coils. I got the Little Man (with Ego connection), which is the same as the Evercool, but with a voltage display. It costs $80, plus shipping. Quite a good deal, I think. But I'll see how well it performs once it arrives