Pat, you should be able to fill all your cable needs at Monoprice.com, or if you want cables that Imo are a little more attractive and still won't break the bank you can try Bluejeanscable.com
To calibrate your speakers get yourself a sound level meter from radioshack or an audio store.
There are people that will come to your home and do all of it for you, but even to the novice it's really fairly simple. One of the joys of this hobby is learning and doing it yourself.

A computer once beat me at chess, but it was no match for me at kick boxing.