For those of you looking for the codec to use Canon powershot videos in Vegas, I found one at http://www.LEADTOOLS.com for under ten bucks. It works well in my opinion and is the cheapest codec I found.
There is actually a way to do this for free, if you have windows movie maker in XP. Just import the clip from your canon still shot. Then render it out at AVI. You can then import it into vegas.
If you are doing this a lot the $10 will be worth it, but if you do it once or twice a year like me, XP is a nice way.
Carson Calderwood