I just ordered an 18-200 to see if I can get a decent sample. I don't really need the 200 on the long end (120 would probably do it) but the 24-120 is at least a generation old (two?) and only about $150 less so I went for the newer lens.

All that to say that I don't see a current generation lens that really has the features I'd like:

-Max f/4 across all focal lengths
-Current gen VR
-18-120 or so to be wide enough yet long enough that I would quite rarely have to switch lenses