I used spacers by Daystar. Overall, they have a good reputation, and can be found on Amazon. I tried both their 1.75" and .75" spacers. Here is their link: Daystarâ„¢ - Driven by Design I thought the 1.75" lift kit made the tires look small. Just keep that in mind.
When you stopped by, I had 33" tires on the jeep. I've recently went up in size to 35s. This weekend I'm installing a 2.5" lift by teraflex (also has a good reputation).
Careful if you decide to go with 3"+ lift. You'll eventually need to change out the control arms, brake lines, etc.