Shyte.
Don't let it get you down.
Someone once said never buy cables in the store... probably a good idea... you can get anything cheaper on the net.
Basically, you need:
1 XLR cable per microphone (at least 6' apiece, longer if you want to get away from the computer)
1 stereo 1/8"-to-stereo 1/4" or stereo 1/8"-XLR for every external source (computer, TV, CD player, etc; at least 6' apiece, but 12' is safter)
1 stereo 1/4"-to-red and white RCA or red and white RCA-to-red and white RCA for outputing to a stereo (so you don't have to have headphones on while editing)
1 pair of decent headphones (I prefer
these from Sony)
I bought a bunch of extra stuff when I got the board because (a) the board was a gift so I figured I could spend the money on the cables and (b) better overprepared, especially since I needed to bring in two mikes, two guitars, a keyboard, and some other stuff, all at the same time.
Check with your musician friends for good cable sources online.