Audio & PC Audio Cable upgrades better than stock.

I am in need of better RCA interconnect cables from my cd player and my PC audio card output to connect into my Parasound Zpre pre-amp. I am using stock crappy cables that come from Radioshack (standard manufactures stock cables). Yuck! (I know). For my PC audio hookup (to play MP3's, thats mostly what I play anyways) I use a mini to dual rca with barrels (not long enough) to connect to another 3' dual rca cable to go into my Parasound pre-amp. I want to just have a one cable solution because I cannot move the location of the pre-amp. I use a 3 foot dual rca to connect my Cd player into the pre-amp (which is lcoated very close to the unit). I am looking to just upgrade to hear better detail and imaging. Any suggestions that are not too expensive and are the best "bang for the buck"????

Does anyone make a mini to dual rca cable thats like 6 feet long or so that high quailty but doesnt cost over $50 or something???

Please post any comments and questions!

BTW, My PC Audio card is a Soundblaster Live! card and my CD player is a Blaupunkt Munchen Car CD player. MY pre-amp is a Parasound Z-pre. My amplifier is a Xtant 3300c 3 channel power amplifier (60x2, 360x1) conservly rated, Astron RS-70M Fully regulated power supply, and Paradigm Studio Reference 80 Version 1 speakers.

Thanks!