I'm buying a new computer and will most likely finally be able to use some ENB features without my computer going 10-15 FPS, but I know zero about ENBs.

I wonder if there are any good basic ENB guides out there to help me get started. I aim to tweak a VERY basic ENB. No color changes at all, only things like better shadows, that awesome sky lighting thing (that makes shaded areas look so more realistic), and such.

Or is that so basic that I don't need any guide at all perhaps?

Also, my computer will be a GTX 670 2gb vram, i3570k, 8 GB RAM. Do you think that will be good enough to use these basic ENBs without losing too much FPS? Anybody that has similar specs like that? On my last computer just enabling ENB without anything costed me like 10 FPS...