I have CXP33's laced to 7600's w/ Competition Double-butted spokes, and it's bomb-proof. The only difference between CXP22's and 33's as I understand is the 22's are spec'd to bikes, while the 33's you order after-market from J&B / QBP / etc...

I've have mixed feelings about the Alex wheels, I've never personally owned any, but I have heard good and bad things overall, but that's with them laced to Alex hubs.

I'm going to recommend against the deep v's because the rims aren't that nice in my opinion (most of the time they're not even straight out of the box) and I think you could do much better for that price.