Im really only familiar with that RP500. Those are great multi fx units. Personally I think hey sound 10x better than those blasted POD's. (I even own a pod, and still hate it. Sounds generic and lame)
Ill bet you can get some good tweak-age out of that EQ/Compressor though. And im just curious, when recording are you going into the units then computer or just putting mic up to your amp?
I also have the same problem. A pretty nice kit that iv put alot of money and time into but can not play since I live downtown where neighbors are everywhere. I hate people who want to live in peace