Personalized Grip from Sail Away, Sweet Sister can increase the accuracy. The adept power Enhanced Accuracy (Blades) can also increase accuracy. Those are the only two I know of.
After character creation, you can pick up a Highland Forge Claymore, which is pretty amazing. Otherwise, I would just go with Unarmed Combat. I would recommend Titanium or Aluminum Bone Lacing if you do. Throwing weapons are a great choice if you have a high Strength, as they have a pretty good range and good damage.