I have K2 H7's and I love them. Fitment is a little hard because I had to do some drilling on the composite housing of the stock H7 bulb. After that they will be perfectly aimed. K2 bulbs have been known to fail 1 out of 10 times and it happened to me but the worked again after a week. I like the look and the visibility but if you are into performance I would spend it on something else.
His kit has direct fit molded bulbs and must be hard wired into your existing harness. Price: $379 shipped
I also just saw a kit on ebay that was going for $349. Dunno much about it, tho.
Check it out for yourselves. I think that either one of them would do a group buy. Damn I wish I had the money for that, but I'm tryin to get the wheel/tire/spring thing goin.