I have a Logitech G51 surround sound, and the cable is too short on one of the rear speakers and a bit of a tight stretch on a front one. I don't want to cut the cable and attatch more (like my uncle suggested), I would rather buy an RCA extension cable that can just be plugged in and problem solved. I need a 3-4m one for the rear and I only need 1m for the front (if I get one at all for front).

What quality cable to I really need? Will a $6 TradeMe cable do, should I get a $20 DSE one or get a $50 fancy gold audiophile one?
 
I'm thinking http://www.dse.co.nz/cgi-bin/dse.storefront/479e393600ed37ca2740c0a87f3306b6/Product/View/C1072 but if I can save money or should spend more please inform me.