jellybean 4.2.2 rooted 1.8ghz OC Stable

Well the most stable Jelly Bean 4.2.2 Rom is out for ATT, Roger and T-Mobile

If your here you most likely already have CWM on your phone so lets skip that.

1st Download
Rom http://vitha.us/android/i747LS422/Liquid-JB-v2.4-OFFICIAL-d2att.zip
Gapps http://vitha.us/android/i747LS422/gapps-jb-20130301-signed.zip
Kernel http://vitha.us/android/i747LS422/BMS_34_d2att_d2tmo_20130519.zip

2nd put on your SD card. (to be safe put copy on both internal SD and external SD)
3rd go in to recovery
Wipe Data/Factory Reset
Wipe Dalvik Cache
4th Install Rom, install Gaps, then install kernel
before reboot Wipe Dalvik Cache and fix permissions
reboot and bam you have a 1.8ghz Galaxy S3 running Liquidsmooth 4.2.2 AOSP with Multi User.

I been using this rom for a while now and it has great battery life and speed is awesome too. I use it with NOVA Launcher. I have never once had a reboot on this Rom. I do not even test roms after get this one. I have used it from 2.1 to the latest 2.4 with BMS 3.4 kernel. Blazing fast rom.