I know, resurrecting an old thread, but i have an Epic feat to suggest that matches the ones above.
You take on greater ability to prepare combat maneuvers.
Prerequisites: Ability to use at least one 9th level maneuver, Martial Lore 24+ ranks
Benefit: You can ready 2 more Martial Maneuvers than you could before. This does not increase the number of granted maneuvers a crusader gets.