I like that idea as well. Instead of 1 full page per class pick a few classes and do multiple pages.
There are so many different ways Class Acts could be presented/handled.
Some focus grouping could be done. Caster Classes focusing on classes like Druid, Cleric, Wizard, Sorcerer, Warlock, War Mage, Necromancer, then Melee classes, Fighter, Barbarian, HexBlade etc, or the Skillful classes of Rogue, Scout, etc, and then there's the inbetween classes like Paladin, Ranger, and Bard.
Then there could be series Class Acts. Pick one class from each of the Complete Books to devote a couple pages to each. Or the Monster series, Draconomicon, Libris Mortis and Lords of Madness, cover some of the base classes in those.
I really like the Class Acts but I think there is so much more potential for that section.