OK, here are the buffs I plan to provide to the party:
Magic Vestment on any shields and armor you want (+5 enhancement, CL 21, up to 22 targets)
Greater Magic Weapon on any weapons you want (+5 enhancement, CL 21, up to 22 targets)
Greater Mighty Wallop on any bludgeoning weapons you want (increase damage as if Colossal, CL 21, up to 22 targets)
Dragonsight on 1 or 2 people (it will only be cast on non-adventuring days, but lasts 3.5 days)
I can also provide others, including personal effects, if you want. I know I handed out an Alter Self and a couple of Mage Armors last time. You can look over my spells known in my character sheet, and if something isn't there that you'd like, you can buy me a Knowstone of it (some Dragon mag, priced as Pearls of Power).