for me.. about 3 to 4 hrs of playing wii sports, then about 30 minutes into zelda..
Wii sports is fun as shit.. the controller takes about 5 minutes or so to get use to. arm not sore or anything (thought it would be after swinging it around) the gameplay is great on zelda, i picked up the controller and had no problems with it on zelda...
btw, the opening to zelda, while link is on ep the music is