I'm among those who prefer the mid-late 80's Cannondale ST based touring bikes- the ones with the steel Tange forks. I ride my 88 about 1400 miles per year, takes a rear rack and front panniers so you can load it up as much or as little as you like. Mine has been updated with Deore derailleurs, Ultegra 700c wheelset and ten speed double with compact crankset, but even with original equipment they're very nice.

Somewhere else in this C&V forum there was a recent posting from a guy looking to sell some larger Cannondale ST's. If it were me, I'd contact him.