Perform Better, a company specializing in "functional training and rehabilitation", has a wide range of strength, conditioning, and rehabilitative equipment. They have offered kettlebells for some time now and I've found them to be of pretty sound quality. Not Dragon Door kettlebells mind you, but pretty solid nonetheless.
Perform Better recently came out with their own line of competition-grade kettlebells called First Place Elite Kettlebells. They are priced very competitively and if you're at all interested in girevoy sport, you might look into buying a pair (or two). Unfortunately, the weight selection is limited, so you'll have to look elsewhere for 2 pood (70lbs) or heavier kettlebells, but they have 12, 16, 20, and 24 kilogram bells and they are shipped PROMPTLY.