Advice Sweater Pattern

[jdee]

Has anyone made this sweater?
http://www.fileden.com/files/2007/4/...%20Sweater.pdf
If so, how did you like it? I like that it shows how to do shaping for the bust area, because I need that. The advice I need is concerning yarn choice. I have some plymouth encore worsted in a beautiful color of purple, but the pattern calls for a much smaller gauge than that. I know there's a way to change yarn and needle sizes and still make this pattern, but I don't know how to do it. I'm horrible at math.

[suzeeq]

You will have to do some math, but it might not be that hard. You can likely do one of the smaller sizes with worsted and the needles of your choice. First, figure out ho