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).
Feel free to call me either Clutter or Julie (my real name).
A sweater of a thousand yards begins with a single stitch. Lao-tzu's Granny