I bought a whole slew of cables recently from monoprice for my new setup. At the price point I really wasn't expecting much but they had such great reviews that i figured what the heck.
They shipped fast and the order was accurate. When the cables arrived I checked the build quality and it seemed solid. I tore apart a component cable I had ordered just for this purpose and the soldering was high quality and the cables were well shielded etc.
I then did some comparisons with some monster cables I had and honestly could not tell any difference.
My advice would be to check them out, at their price point even if you are somehow dissapointed you haven't wasted much.
