The 196 isn't too big, however I agree that the 'ole yoke mount is essential really (comes included along with remote GPS antenna), but the full screen map if just tops. I still use my map and PLOG and work out my headings etc and fly my track, the GPS is just brilliant though for cross-reference.
Also, I find it really brings the workload down when caught in marginal weather, you can concetrate and flying and weather avoidance withoug having to worry about where you are!!
