That is fine. Nvidia is a great company. In this generation of cards they definitely have the lead. I try not to play favorites. I have owned both AMD and Nvidia cards. If I was buying today I would most likely go Nvidia however it would depend on the price point. I am looking forward to the release of the GeForce GTX 660.
If you were referring to the CPU I fully understand. Intel is the way to go. However I brought my CPU on a budget during the PRE-Sandy Bridge days.