I'll be installing my unfinished red oak over the weekend and I'm not set yet on the method to use for polyurethane application. I plan to use Minwax Super Fast Drying Poly. I have polyurethaned stuff before with great results, just nothing this big.
I was going to try either rolling it on or a lambswool applicator. I saw a video of someone rolling it on and it looked really easy. I've heard 1/4 inch nap roller, but anything else specific. I plan to edge with a natural bristle brush.