I just moved from a Dell XPS710 to a self built system. And with this build I took the dual 8800GT cards out of the Dell and put it in my new system.
Case: Corsair Carbide Series 500R
Cooling: Corsair Hydro H100
The problem is I never realized just how loud these 8800GT(s) were because the Dell system was just insanely loud.
My new system is so quite, without the video cards, it is in fact silent. So now all I hear are these video cards. I don't need a high end gaming solution and I was more than happy with the performance the 8800GT(s) gave me, but I am looking for suggestions as to what new cards might give me the same ( or better ) performance, BUT with less noise than the 8800GT banshees are putting out.
If you're going to go with a GTX560Ti I recommend the MSI GTX560Ti:http://www.newegg.com/Product/Product.aspx?Item=N82E168... lots of good options for the Ti though. Lots of EVGA options that look good but you'll have to check them out yourselves to decide. That one should provide the best cooling and should be the best for your purposes. 30dB under full load and pushing 66 at full load. http://www.newegg.com/Product/Product.aspx?Item=N82E168... seems to be just equally as good. Running BF3 at ultra and running around 50. Fan may be a little loud but everybody says it OC's very well and can beat 570s.
I agree with mouse, it takes a gtx 460 minimum to really break even let alone see any gains over what you have and the gtx560ti will bump things up rather nicely. Power consumption will be the same either way you go until you overclock if you ever decide to. I went from two 9800gt to a single gtx 460 and gained around a conservative 20% improvement while I later couldn't get a good second gtx 460 so I ended up getting two gts280 later on down the road. Over all the gtx 560ti is the best single card choice for most games on the nvidia side.