FYI. My nvidia's came in today. Had to thank the ups man. It's 20 degrees outside now (south coast Mass), but 80 in my basement. I haven't run the heat all winter. I figure I have about 2 more months of mining in my basement. It's going to be an oven down there come spring. If the nvidia's work out, then it's fire sale of my amd's. Will keep you all posted on how the 750ti's run.
For your reading pleasure
http://cryptomining-blog.com/922-the-new-nvidia-geforce-gtx-750-ti-scrypt-mining-performance/