I ran 4.56 gears with 33" tires before I went to 35s.
I'm thinking 4.11s might be more up your alley though for 32" tires if you seldom plan to off-road. With the 4.56s your RPMs get much higher going down the road. Can't remember for sure, but 70mph was pretty close to 3000 rpms compared to 2100 stock gears & tires. But you'd have a sweet crawl ratio and plenty of power.
Just depends on what your preferances are, I'd usually say 4.56, but if you'll be on pavement most of the time, 4.11s might be for you
'91 YJ Mangler w/ too many mods...and yet not enough ;)