Speaker wire upgrade??

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.

The Home Depot wire suggestion is an excellent one although the one recommended by Absolute Sound is the exterior extension cable (multi strand) about 12 gauge (the orange stuff).
For commercial products the Analysis Plus Oval 9 is a superb cable as is the JPS Labs Ultraconductor and Superconductor

Here's a second for Straley's Reality SC's. In my system they do everything well - top to bottom. After months of auditioning several brands - Signal, Audio Art, Speltz, and Morrow Audio - finally settled on the Straley's. Bottom line ... I don't think about my SC's anymore.

Clear Day solid core silver shotgun is A-M-A-Z-I-N-G!

BUT, he now has Double Shotgun. MSRP $500/8ft pr. I just got a pair and will be trading in my 2 regular silver shotgun pairs

This wire:

vhaudio.com/images/tunami_nigo.jpg ($80/meter)

or the "Across 2000" wire at $50/meter

These connectors:

www.diycable.com/main/product_info.php?cPath=26_136&products_id=544 (about $5/pair)

A small electronics flathead screwdriver

I currently use the "Across 2000" and just received 2 meters of the "Nigo" wire. They are both fairly inflexible, something that may not suit. A real bargain for little work invested.