Fenris
Adventurer
Felix said:... weren't bows historically the best bang for your buck ranged weapon? I mean the only thing that x-bows have on bows is range and the simple weapon proficiency. And I think that's just for balance reasons. There's a reason that all the buttkickin ranged specialists use bows: bows rock.
(for SHAME Felix!)
Yes bows were the best bang for your buck, but they required a LOT of practice, which is why although very popular and effective in England, where yeoman were required to practice with them, the continental armies used crossbows.
So make long bows (or at least composite and or mighty) exotic weapons and make crossbows martial weapons.
The ranged specialist will still go with a bow, but Joe Fighter will stick with a crossbow. Mix in some of the other tweaks the fine folks in this thread have mentioned and you have a crossbow-centric world!