Practiced Spellcaster  ( Complete Arcane, p. 82)   Choose a
spellcasting class that you possess. Your spells cast from that
class are more powerful.   Spellcraft 4 ranks,   Your caster
level for the chosen spellcasting class increases by 4. This
benefit can't increase your caster level to higher than your Hit
Dice. However, even if you can't benefit from the full bonus
immediately, if you later gain Hit Dice in levels of
nonspellcasting classes, you might be able to apply the rest of
the bonus. For example, a human 5th-level sorcerer/3rd-level
fighter who selects this feat would increase his sorcerer caster
level from 5th to 8th (since he has 8 Hit Dice). If he later
gained a fighter level, he would gain the remainder of the bonus
and his sorcerer caster level would become 9th (since he now has
9 Hit Dice). A character with two or more spellcasting classes
(such as a bard/sorcerer or a ranger/druid) must choose which
class gains the feat's effect. This feat does not affect your
spells per day or spells known.