Depends on what kind of driving you are going to be doing. The escort is a great choice if you are not going to be breaking the sound barrier and just need the security of the radar detector. If you typical habits are +15mph over the limit go with the V1 you won't regret it !
For the mount I would go with The Blend Mount,
http://www.blendmount.com/. This allows a nice tight mount to your rear view mirror giving a great view for the detector but also making it very stealthy. Also go with the direct wire option which I think is the best.