Just have the LBS replace the alu fork on the Felt to carbon and your're set. It has a more aggresive geometry and just plain looks better. There is no extra safty advantage using either disk or V-brakes if both are maintained properly. On the other hand, if there are lots of mountain size hills, go for the disk brakes knowing that you will take a performance hit.

That felt looks so nice. I would still get the Jamis Coda because it has a Reynolds 525 frame.