I am happy to post. Complete success, in installing my new nvidia GTX 650 card. I followed the tutorial above and the nvidia driver disabled the Nouveau for me and wrote it into the config file, then after a reboot, I had to run the nvidia installer again, it then installed, and now when the computer starts up it gives a quick splash screen of NVIDIA, it also istalled a monitor panel in the control center, that gives you all the setttings, and the temp. Mine is running idle at about 32C and naturally goes up during game play.
But I thought I was going to get a slight increase in performance from my 9500GT, boy was I wrong, even some of the software like Cairo works now as does window compositing. Game play is absolutlely beautiful on open arena.
I have to learn how to do bench marking now, but over all everything just loads on my screen almost instantly for anything on the internet. Very happy with the card and the driver.
Thank You for the tutorial!
OS: Linux Mint 17 KDE
Motherboard: Gigabyte EP45-UD3P Rev. 1.6 FE BIOS
CPU: Intel Core2Quad Q8400 2.66 GHz.
Memory: GSkill: 4 GB DDR2 800 MHz.
GPU: PCI-E 3 NVidia GEFORCE GTX 650 DDR 5, 1GB Ram
Drives: Int: 120 GiB SSD Samsumg REVO, 500 GiB WD HDD, Ext: USB 2 500 GiB HDD