Good power cord for Rotel?


I have a Rotel setup (RB-1080, RC-1070, RCD-1072), all new, and wanted to swap out the power cord for the amp, and perhaps the others as well, for something a little better. Don't want to break the bank. Any recommendations?
robreuland
Keep an eye out on A'gon for used Virtual Dynamics Power2 or Power3 cords. These cords are superb for the money. Example:

http://cls.audiogon.com/cgi-bin/cls.pl?cablpowr&1135388390

John
Didn't swap out the CD or preamp cords yet -- I was told the big difference would be in the amp, not the source. I tried out a Richard Gray 400 Pro that had NO effect, so I'm a little leery about tweaks.