I don't think the FSA cranks are worth it. It's really just carbon, overlayed over aluminum, so they are really no lighter or stiffer than say, Omnium, Sugino, Dura Ace cranks. They just have the "carbon appeal" to people.

In all actuality, I've heard quite a few complains about the cranks. Not only the probably of the carbon separating from the cranks, but things like the Q factor being too wide, and the bottom bracket always coming loose or making noise.

For the price of them, I think it be better to go with some Sugino 75, or since this is for the street, some Omniums. They are lighter, at least.