Horton makes some good crossbows but I believe the best are Tenpoint.
http://www.tenpointcrossbows.com You should check out their Stealth model. But like a good rifle, shotgun, or compound, they aren' t cheap. I' ve done some testing with a Stealth and have the most experience with it. Be advised, crossbows are not what most people believe. First, they are extremely noisy. Sounds like dry firing your compound when one goes off. And next, don' t believe you can easily take deer out to 100 yards. And finally, yup, they are extremely accurate within normal bow ranges. Hope this information helps. You can check out the Tenpoint Stealth in either Bass Pro Shops or Cabela' s Archery Catalogs.