The cable will be okay. Cheap cables do not have the proper shielding necessary to keep additional noise (RF interference) out, so if you see the picture messing up, take the cable back and get another cable.
You should be okay. Usually anything about $10 - $12 and up are okay. Not the best, but nothing you will notice a difference on, unless you have a $5000 home entertainment system.
I do not agree with the CNET review. Not only is there a video signal higher than 1080p (it is 1440p, used in high end video equipment), you would think CNET would know this. Also, cheap cables, as stated above, don't always have the proper shieding that is required to reduce noise. The cables they are discussing in the article are not considered "cheap" cables. Cheap cables are the ones you can buy for about $2 - $3, these are cheap cables.
I do agree you do not need a $50 cable, or $30 cable for that matter, but if you have problems with a cheaper cable,don't be suprised. Just be prepared to take it back and get another cable.
I have a $100 Monster HDMI cable, and $15 Wal-Mart cable, and I don't notice a difference between the two.