I don't know if you have already seen this, but Gail (from Til Debt Do Us Part) has a wedding budget worksheet on her website.
It also has average prices for each category which I found was reasonably close to what I ended up spending. I know I had trouble finding info on average prices for Canada when I was planning.
http://www.gailvazoxlade.com/resources/wedding_budget_worksheet.htmlHope this helps!