go look for some $10 Component cables at Best Buy. We got them in a few weeks ago, and they work with both PS2/XBox.
Probably not Monster quality, but at $10, you can't lose...
edit: I know they are like in a whitish packing with hard-plastic wrapping. I believe they were MadCatz BTW, and probably you'll find them in a overstock/PS2/XBox section somewhere.