Getting EA Sports Active for the Wii was a big boost to my exercise program. This software has pre-programmed workouts and it keeps track of the time spent as well as approximate calories. You should have the Wii Balance Board to use with it.
To control cravings in the late evening I've started walking on my treadmill instead of going for food. By the time I've finished walking the craving has usually gone away. If not, I know I've expended some calories so eating a snack won't cost me as much.