iwww.puritan.com is my fast, cheap source for vitamins and antioxidents. Right now they have turmeric at $9 a bottle of 100, buy 2, get 3 free, so for $18 you get 5 bottles (500 capsules). They ship by UPS ground, so it's cheap shipping, too, and I usually get my package in 3 days.
FYI: Buying bulk tumeric powder and mixing a teaspoon in grape juice is cheaper than buying the capsules.