Nice. Brands to consider would change slightly depending if you were just racing the bike or going to use it for other riding year-round, too. Make sure you factor fit into the decision--there can be a huge difference from one brand to another and knowing your ideal top tube range and stuff can be really helpful when shopping.
FELT - F75X my personal fav
Raleigh RX 1.0 (REI is currently having a closeout sale on the 2012)
Also, dido on what Chris said - the best CX bike for you is one that fits!
Where are you located? I'm working to launch a new site out of Portland (cyclocross.com) and I know there's 53, 55 and 57cm F75X inventory kicking around places in Portland.
Ah, darn. We'll be shipping bikes once the site goes live, but can't ship Felts. Has to be somebody in MA that has one, though.
Yea, I've been trying to destroy a F75X for two years now without much luck (and I'm hard on bikes). The F65X and 55X share the same geometry as the the F75X, so if you found a 55 or 65 that fits your dealer could order a 75 in the same size.