I took Dave Platt's advice years ago and purchased some #11 scalpel blades. Those bad boys are really sharp and seem to hold their edge a lot longer. I also like the fact that the handles are flat and don't roll off the bench skewering my thigh or instep like your typical X-Acto style handle does. I know there are ways to prevent that but with the scalpel handles, you don't need to do anything.

As for that sharpener that was pictured in the link shown above, I believe the name of that item is the Edger. I've seen them every year for about the past 10 or 15 years at the annual WRAMS show held in February in White Plains, NY.