XFX 6950 $263 shipped ($242 after rebate) and it has a quiet cooler
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150523
I have a MSI 460GTX Cyclone card that has a similar cooler installed and it works great, very low temps.
2GB card w/reference design (easily unlocked and OC'd to 6970 levels) >>> 1GB card w/custom cooler imo, 'specially when the former is still $10 cheaper. Honestly the prices for the 1GB cards are kinda wonky, there's at 'least one other 6950 2GB card under $245 after MIR... Unless you're playing at 1680x1050 or something you'd be foolish to go for a 1GB card; although if you are, then by all means go for it... I dunno about that card's cooler in particular but the custom cooler on the XFX 6870 is amazing.