Uh...
1. As for your first link, that's just WoW...and old game with old tech. He also mentioned SW:TOR and BF3. Both will make WoW look Bubble Bobble.
2. As for the second link and like I said above, that card will probably not even run SW:TOR and DEFINITELY not BF3 on medium settings. Probably will even struggle BF3 on the lowest settings.
3. As for your edit, why do you need a $1400 monitor to use a 6970? My 27" Asus 3D monitor has 120hz and looks better than most TV's, cost $380 on sale at Newegg, marked down from $500. I run Crossfire 6950's and I couldn't be more happy with my picture.
4. Here is your card you linked vs the HD 6970. Comparison The only thing it wins in is power consumption..and that's a given.
Even Crossfired Radeon 5770's don't compare to one 6970.
No offense but if you don't know what is better than what you shouldn't be giving tech advice. Especially to someone who is going to be buying this stuff. Unless you're just trolling?