Blog Entry about site:
http://www.kk.org/cooltools/archives/004638.phpActual Site:
http://www.deepsurplus.com/Really cheap cables, for example 3.5mm to 3.5mm cable on Apple website costs $19.95 similar cable on Deep Surplus costs $0.80.
Cheapest 7' CAT 6 on Newegg costs $3.99 whereas it costs $1.16 - $1.45 on Deep Surplus.
Shipping is expensive for a single item, but if you have a need for multiples it might be a good deal.
ETA: Apparently another good website for cheap cables is http://www.monoprice.com/home/index.asp. It appears that the shipping is much more reasonable.