wnat to downgrade my cables


I feel like I have too much $$ in my cabling considering the price of my system. Have all Yamamura M5000 and would rather have the $1000+ I would get used to put towards an amp upgrade and lesser cables. I like the warm sound of the yams. my system is:
Cary CD-308
Cary SLI-80
MM deCapo speakers

Thanks
stuartbranson
Well my price range has changed. I started this looking for a $200 cable(used) that would replace the $450-500 Yamamuras (used). I was hopeful that someone would know my gear or the type of sound I would like and give me some avenues for research. I've gotten many ideas but after my latest experiments(YamM5000,SonoranDesert/XLO pro1200) I admit that I am leery of dropping the $200 because I realize that my expectations were, likely, unrealistic. I know there's alot of overpriced cables but some are expensive AND good and some are moderate and good. I'm starting to wonder about the cheap and good. So maybe my budget is going back up to the $600(used) mark because it'll be worth it if I hear what I know is there.
Oh yah, duh... I just switched to 47 Labs' OTA cables. I second Dave's recommendation. Then again, Bogdan uses a 300B amp as reference when making his cables too.
So how does that stuff work? Can you just chop a 25' lenth into four and bare-wire it to the terminals? Guess I'll look it up.
The kit comes in a single 50 meter run. I bought it used, so I got them in (4) 10 feet runs to use as speaker cables and some bits and pieces to make AC cords and IC with. If I got some more long runs left, I'd double the neutral run for the speaker cable.