I got a good deal on some Bontrager Race X Lites the other week , but have not yet put them on my Madone 4.7. I have read mixed reviews about the wheels but I think I am o.k.
It seems that if you are over 200 lbs, then these wheels had some cracking and bearing problems, but being 155lbs it shouldn't be a problem.
I have read, however, that you sort of have to re learn how to ride your bike because the performance and handling is that much more improved