Feats? Not unless you're Epic: the Combat Archery feat does what you're after in that case.
Otherwise, you've got the arrow mind spell from Complete Adventurer: Rgr1, Sor/Wiz1; allows you to use a ranged weapon without provoking AoO's and you threaten with your bow to normal melee reach.
Finally, there's the Close Combat Shot class ability from the 2nd level of the Order of the Bow Initiate prestige class. Not much use to you as although it would let you use a thrown weapon without provoking, the prerequisites (unsurprisingly) are all about bows. You might well be able to sweet-talk your DM into allowing a more general-purpose version of the class that has Weapon Focus (any ranged weapon) and Craft (any skill used to make a ranged weapon) as alternate prerequisites though: it's not much of a tweak.
And that's all I can remember; if there are any other tricks to avoiding AoO's with ranged weapons, I can't remember 'em!