Hi,
Those are fine cameras. Canons are pretty dependable, good picture quality and easy to use. Which one? The A series runs off of AA batteries but its got the plastic feel. SD looks and feels better (if you like the solid aluminum look) but its more expensive. Check out
www.dpreview.com for reviews on both cameras. Personally, I would pick the SD400. Its a better camera (more features) and better build quality.
One thing about Canons....its perfectly alright to buy it from the states and get warantty work done in Canada. Their waranty works in both countries. On the other hand, if it was Nikon stuff....doesn't work that way (buy in Canada, get waranty in Canada. Buy US, no waranty in Canada).
\Do you have special needs for your camera?
- Victor.