-any one traveled in that time slot have any suggestions on the weater and how the heck to pack for this adventrue.
Just did the Rhine and Mosel cruise in May and it was cold and damp. They told us April was warm and sunny. Packing? Layers! Lots of layers! And make at least one layer waterproof. Our Great Rivers cruise was in July and we had a world-class heat wave, so can't give you much help there.
-I don't see where the River Cruise ships are wireless (thats a bummer) how hard is it to find internet cafe's close to ports?
The ship does not have a WiFi hot spot, but they do have a netbook you can rent (fairly reasonable price) that gets you hooked up to a slow Internet connection. Internet cafes are available in most ports, but they are expensive, kind of hard to find, and seldom available during your period of availability.
Any must see's do's and anything that is';t on the top of your list for that trip
Take all of the included tours, for they show you the "must see" sites in every town. See the organ demonstration at St. Stephen's in Passau. See the Residenz in Wurtzburg. Go for the home-hosted coffee klatch. See the Gutenburg Museum and demonstration in Cologne. Of the optional tours, I would say that Heidleburg is a yes, Rothenburg a maybe, Marksburg Castle a yes, Wittenberg Monastary a no.