My friend is running a D&D 3.5 campaign, where we've played our characters from 1st to 8th level. My character, a Grippli (Small, treefrog-like creatures) highly specialized for fighting with a composite longbow, has just finished his story arc. He is also starting to seriously unbalance the party, having the only 1-to-1 BAB progression, and being--as I said--focused entirely on bow-fighting. His total to-hit is nearly 10 (+18/+18/+13, if < 30' from target) higher than the nearest party member, and his damage (1d6 + 1d6 cold + 7, if < 30') is equal to roughly three of the party put together.
When we were buying gear after the huge end to his arc, the DM politely asked me not to buy Greater Bracers of Archery, since at that point we'd have to encounter ONLY things that were resistant or impervious to bow damage. We just fought a huge group of monks, lead by a lycanthrope monk, so that would probably get old for EVERYONE quickly. I figure that if things have gotten to the point where I'm being asked to refocus my character for balance's sake, then things are well out of hand.
The moral of the story? I am considering (for the sake of party balance) switching to a new character, with a less specialized (or at least less threatening) build. My idea? A Diviner who makes his/her living by...errr...divining people's secrets, and then blackmailing them. I thought about Wiz/Loremaster, but that didn't thrill me. Bards have the advantage of being not only more skillful, but better at negotiation and "face" activities as well. Plus, I just love Glibness.
So, what prestige classes are out there for are Bard or (*sigh*) Sorcerer or Wizard of this type? I have 8 levels to work with at this point, but I don't need to be in it right away. I'm not afraid to multiclass, either.tl;dr
I'm looking for a Bard PrC, that will help with Divination and/or Bardic Knowledge. Spell Progession is a priority.