Work on getting your new components broke in, also speaker placement and room acoustics play a much larger role in quality of sound, maybe the most important IMHO. I would take your time with this one. You need to read up on room treatments, get educated with this cause the rewards will be better than any wire upgrade. So with speaker placement and room treatments this should keep you busy for the next six months. I think dedicated lines are next important along with power conditioning and this can be done during your room tuning project but go for the room thing first. A few sites you may want to check out are Rives, Tube Traps, Echobusters and Acoustical Solutions as there is a wealth of info for you.