I had some time after work today, so I decided to see if I could learn how to use the filters I just received. I used the river that flows through Loveland for the subject.
I used a Super Takumar 28mm F3.5 lens at F11 for the first image and a SMC Takumar 55mm F1.8 lens for the second. Both were set to F11 and both used a Cokin P filter holder and a Hitech 2.7 ND filter as well as a 3 stop hard graduated filter.
I only spent a few minutes taking the shots, but I can already see where I'll be using this setup in many landscapes.