Hi Mate
If you're going to use Jelly Bean, this would be my recommendation
http://xdaforums.com/showthread.php?t=1820578
It's fast as hell, no bugs/lags or anything that I could pick up in the last 3 days that Im using it. Simply put, one incredible rom from a guy in Turkey. From the look of it, this guy knows what he is doing. It even has OTA, which is an updater that updates your rom without having to format your phone and re-install. I chop and change allot when it comes to operating systems, there's always something new out there, but this one has bowled me over, simply put, one amazing rom.