You're not actually casting on, you're increasing. Any of the increases found under the 'Free Video's Tab at the top of the page will work. But yes, you do get a better finish if you do your decrease one stitch in from the edge.
An English Knitter (nationality and method).
FO: Downton Hat
Call me either Clutter or Julie (my real name), if you find it easier to type than Dclutterchique.