We use Fresh Step...it works really well.
I use Fresh Step as well, and I think it's much better than clumping litter. I used to use clumping, but it got too annoying, so I switched. And as a vet, I recommend Fresh Step. I also recommend this new litter box my cat has that I bought from a commercial. It senses the cat entering and leaving the litter box. Then, when the cat leaves, it sweeps up the droppings and puts them in this compartment attatced to it. I really love it. Anyway, if your still going with the clumping, good luck finding a brand.