Thanks for the reply Ajax and JohnK.

JohnK, the cable that you linked to has two connectors on each end. I am under the impression that to connect an amp and pre-amp for 5.1 that you would need 5 single ended cables. Am I right here or off?
Also, just to show my total ignorance, are the connections between the amp and pre-amp usually just the regular type? Sorry I don't know what they are actually called, but just the regular ones in either mine or JohnK's link.

Thanks for all the help!