If you like to experiment try this on for size. Go to Lowe's or Home Depot get some 12Ga solid core wire (around $25) run the lengths that you need strip the ends and see what you hear. This wire is a little pain to work with but yields some fantastic results. If you like the sound then you terminate it with you favorite connector and add some wire loom for aesthetics. Then use the other suggestions you get here, buy the cable used from Audiogon, make a performance comparison and go from there. The good news with the used cable if you don't like it you can always resale it here for what you paid without much lose. Plus its an very eye opening experiment.