I brewed an Oktoberfest a couple weeks ago along with a couple other lagers and plan on cracking them all around the beginning of May.
Regarding recipes, I just used the one that I wrote for the BJCP exam maybe a year ago. Although I cannot really remember what style we had to write one for on the actual exam when I took it, I wrote one for every style that can be on the exam when I was practicing. I figured I went through the trouble of designing the recipes, so I may as well use them.
My recipe is basically 60/40 Vienna/Munich with about 4% caramel 40.