Gooomz,
You are now entering an area in audio that can create great emotion and sometimes - an emotional outburst.

Keeping it short.....
speaker cables:
You do not have to spend bunches of money to find good speaker cables. There are several place on the web - blue jeans being one of them, where you can get good quality cables at a good price.
I also like signal cables signal cables.
Monster cables can be fine - but it is an over priced marketing machine.

Power cables:
some people swear by them.... me - i would rather spend money on room treatments or on upgrading speakers then specialized power cords.
If you have good power protection/conditioning.... you should be good.


In the end, it is up to you to decide how important chasing the nth degree sound (surround)reproduction/experience is to you.....

Later,