[New to Nvidia] Proper settings + other questions

[Orphydian]

I just bought a Gigabyte gtx 660 Oc version after runnign an Radeon HD 3650 for 5 years and I dont know  how to get the best from my new acquisition.

Here you can see all the specifications of the  card http://www.gigabyte.com.ro/products/product-page.aspx?pid=4361#ov.

I want to have the best experience with Nvidia and I wonder what do I need to set on Nvidia control panel?





I have also installed an...utility!!?? idk..that came with the product disc called Gigabyte OC Guru.The same: is it recommended to make some changes here  or?
here is a capture with the interface



And what about this technologies from Nvidia shown here http://www.geforce.co.uk/hardware/desktop-gpus/geforce-gtx-660/features are they automatic or?

And last but not least, does this card supports 3d gaming Im confused since in this section my card is listed http://www.geforce.co.uk/hardware/technology/3d-vision/supported-gpus  while on another is not http://www.nvidia.co.uk/object/buy-3d-graphics-cards-uk.html


Thanks!!!