If anyone was interested in the outcome, I ended up spending right around $200. I haven't gotten F4 yet, but at least I am running F:NV on ultra high settings with everything turned on/up.
I have a Phenom II 945, 3 Ghzx4; 8 MB of new RAM; and I opted for a lower-end card than you all recommended to stay in my price range, with a R9 270.
So at the very least, I should out-perform the consoles for less than the price of a console, which was my objective.
As an aside, I assume I can expect NV to look at least as good as 4 looks right now?