Unless you're having trouble with your current ones, why replace them? If they're oxidizing on the contacts or something like that, then yeah. But, if you think it's time for something new, check out
Blue Jeans. They offer top quality stuff in custom lengths and reasonable prices. If you want more *bling* in your system, check out
Cobalt Cable. Honestly the same as Blue Jeans, but with more in the looks department.