For the current character in ToEE the only somehow useful feat I see is [Extend Spell][1] and its more expensive variant [Persistent Spell][2]. The latter is only useful if *Metamagic Song* is allowed (see below), and opens up a wide variety of buffing possibilities (which can be *widened* with a liberal use of [Ocular Spell][3] or [Reach Spell][4], if your DM allows that).

The others are either damage-oriented, situative or too expensive.

While normally there are plenty of ways to reduce metamagic costs (elaborated [here][5] in great detail), they are all feat-intensive or class abilities, which you will hard time to access with a start of three levels of bard and three feats not related to the task. A single exception to this is [Metamagic Song][6] feat, which allows to DMM-like fuel your metamagic by *bardic music* uses, which is handy, if your DM agrees with round-the-clock buffs. 

You might want to take a look at the [ways of optimizing *bardic music* instead][7], since you do disguise it as a spell-like recitation anyway (I can't help but imagine a rapper magician here).

For the record, how to make Quicken useful for a spontaneous caster:

 - *Arcane Preparation* feat
 - Reduce cost to your liking (several more feats)
 - Ponder whether it would be cheaper to be immune to daze and use *Celerity*.


  [1]: http://www.d20srd.org/srd/feats.htm#extendSpell
  [2]: http://webcache.googleusercontent.com/search?q=cache:eEMZpnzyw_wJ:dndtools.eu/feats/complete-arcane--55/persistent-spell--2140/%20&cd=1&hl=en&ct=clnk&gl=ru
  [3]: http://webcache.googleusercontent.com/search?q=cache:K9s7JSH6uUoJ:dndtools.eu/feats/lords-of-madness--72/ocular-spell--2079/%20&cd=1&hl=en&ct=clnk&gl=ru
  [4]: http://webcache.googleusercontent.com/search?q=cache:LGKVgg4WX-EJ:dndtools.eu/feats/complete-divine--56/reach-spell--2390/%20&cd=1&hl=en&ct=clnk&gl=ru
  [5]: http://brilliantgameologists.com/boards/index.php?topic=9876.0
  [6]: http://webcache.googleusercontent.com/search?q=cache:RRx6CpYEtdUJ:dndtools.eu/feats/races-of-stone--82/metamagic-song--1932/%20&cd=1&hl=en&ct=clnk&gl=ru
  [7]: http://www.minmaxboards.com/index.php?topic=8936.0