Monoprice is good, pretty high quality stuff for low prices.
BTW, just because it's digital, doesn't mean all cables are identical. It just means that when there's a problem, it's very noticeable. Analog provides a smooth degradation, whereas digital will eventually reach a point where the error compensation can't cope anymore and you'll get major visual errors. That said, you need some really long cable runs before you'll get problems with a digital signal.
Coaxial digital signals are usually good on even cheap cables for up to 50 ft (most of my "digital audio cables" are just whatever old RCA cables I had laying around, they work fine though they're all under 10 ft). HDMI, due to the way the cable is made, suffers problems at a far shorter distance, I forget how long but as long as you're staying under 10ft I wouldn't worry about it.
I'll also vouch for monoprice cables, typically if you buy a cable from them of a certain length, it's insulated well enough to work at that length. (if they offer a heavier duty wire though, I'd go for it since I think they do offer two different gauges on most of their hd stuff)