Romantic villages for a night near Colmar

hey guys,

I live just across the border from Colmar in Freiburg, Germany. My girlfriend and I are celebrating our five year anniversary next weekend and we wanted to head over the border to Alsace for a night.

some background info:
1)we've been to colmar, selestat, obernai, strasbourg
2)we don't have a car so we need easy bus/train connections from Colmar
3)thinking about Riquewihr and Ribeauville but maybe something different.

Looking for a charming place and a room for less than 50euro.

suggestions?

Also, is there some way to get a better price on bus/train in the area? Last time from Colmar to Selestat to Obernai was pretty expensive...