Really most of us read all the threads (if you go to the graphics section at the front you can view all with the drill-down), so it's up to you if you need a new thread, I'd say you likely get about the same people either way.
The prices are usually taken from NewEgg.com, so if you're in the US it's a great place to start for a general idea of prices. And then from there prigrabber, prciewatch, and the individual stores like Fry's (aka Outpost.com), BestBuy, NICX, etc. occasionally have good sales.
For nV based brands I would say the one to stay away from is PNY (heard more bad than good about them, they used to be awesome though), the big boyz in nV are eVGA, BFG, and XFX, they usually have the most options of cards, nice features, often factory overclocked cards, and then good warranties and customer service (and in eVGA's case a step-up program that allows you to use the price of the card you just bought to buy a new one should something better come out within the next 90days). MSI and ASUS makes good cards, but they seems to be jsut above average and not as popular with enthusiasts. Outside of the US Gainward is IMO the best nV card maker period, but they are mainly Euro and Austral-Asia market, not available in the US without special order and paying a big premium.
Best recent comparison of GF800s IMO are the following;
Good Reviews of the eVGA GF8800GTS-320 Superclocked;
http://www.firingsquad.com/hardware/evga_e-geforce_8800_gts_superclocked_320mb/
http://enthusiast.hardocp.com/article.html?art=MTI5MywxLCxoZW50aHVzaWFzdA==
BFG GF8800GTS-320 OC;
http://enthusiast.hardocp.com/article.html?art=MTI4MSwsLGhlbnRodXNpYXN0
BFG, MSI, Foxconn;
http://www.digit-life.com/articles2/video/g80-7.html
In the Digit-Life test, the X1950 does pretty well in some situations, but really overall the winner is pretty clear, and the potential in the GF8800s is pretty good. And I think company of Heroes is more of an immature product issue, as time goes on the GTS wil gain improvements in better drivers, whereas the X1950s are near the most the drivers will pull from them.
Hope that helps.