Well I found a race in Colorado that had liberal timing and was not one that went through the mountains (a hard feat I am finding).
http://www.thecoloradomarathon.com/registration.html
This one is a bit earlier than anticipated, but it would be good for another half ... and it's at the beginning of May.
I was also looking at Cleveland (yeah, I know) but the run is fairly flat and has an 8 hour limit, which is ideal for me (at least right now).
October runs are still there :-) These are just a little closer - thoughts?