Arcane Preparation
(Tome and Blood: A Guidebook to Wizards and Sorcerers, page 38, DnD 3.0)
[General]
You can prepare an arcane spell ahead of time as a wizard does.
Prerequisite
You must be able to cast spells as a bard or sorcerer before you can take this feat
Benefit
Each day, you are able to prepare one or more spells as a wizard does. If you are a sorcerer or a bard, this means that you can prepare a spell with a metamagic feat ahead of time, instead of casting it as a full-round action. The prepared spell remains in your mind and occupies one of your spell slots until you cast it or change it. A prepared spell uses a spell slot of the spell's normal level, modified by any other metamagic feats.