well i just spent like 3 hours sleeving half of my power supply.. I still have like a lot more to do.... if anyone is thinking about sleeving there PSU, get a PSU that is already sleeved becuase its a pain in the @$$...
It isn't a pain in the @ss once you know what you're doing (well to me anyways), and you've done it a couple of times. Although, it is still very time consuming.
i had a blast doing it, when it comes to modding, it should never be a pain... it's a learning experience. in face the first time i sleeved a psu, which is the one i have in my pc, it took me the whole day! but it came out great!
sleeving is covering the normal psu wires or power cables and other cables in your case with blue/green/red/other to neaten up your case by slipping a tube over it.