I got my new yellow Ipod nano chromatic. (4th generation 8GB.) I wanted to know where can I get a wall charger from?

Should be able to get it at the same place you got the nano. If not, just Google it. IGonemobile has them.. probably circuitcity bestbuy Amazon - etc

I was thinking about going to the apple store. Since they know more about the 4th generation nanos' I think it is more harder to search in a retail store.