EvilMonkey:nzgeek:Brendan: But before you do, do a factory reset and wipe the dalvik and cache partitions from within cwm.
It's becoming less of a requirement to clear these manually. ROM developers know that out needs to be done, and build the wipe process onto their ROM install scripts. I can verify that the WanamLite script does clear both cache and Dalvik cache.
WanamLite install instructions still recommended to do a wipe if coming from a different or stock ROM.
Also I could only find the NOWIPE ROMS, not that I looked very hard though.
You do the wipe in cwm, from a menu.
I actually use a script that formats the system partition also, as I use root apps all the time. Easy way to make sure you are getting rid of any stupid rubbish left behind in the system partition (which doesn't get formatted normally). Bit better than just formatting (wiping) the cache and data partitions as a wipe does.
You better make sure you install a kernel or ROM before you leave cwm after formatting the system partition though - or you could brick your phone...