TV converter box


I have an anolog TV and the Dish network. As we all know, on 4-17-09 things will all be digital. Does anyone know of a good converter box that won't break the bank?

Thanks!
john_fink
when I bought mine Radioshak charged $10 more per box then Wallmart so maybe things are different in regional areas, John lives near me so I am telling him my experience.