Try Amazon.ca. They have free shipping when you spend over $39.00 or something like that.
Speaking of these DVD's I'm so far behind it's going to cost me probably around $500.00 to get caught up on DVD's. I have NO G.I.Joe on DVD (except for the movie but that doesn't count) and with the Transformers I have season 1 and season 2 part 1, and that's it. So I need to still buy all the G.I. Joe sets (season 1 parts 1 &2, season 2 part 1) and the Trasnformers Season 2, part 2, Season 3 part 1, part 2 season 3/season 4. Not even looking at beast wars at this time.
Gah! AT least my Simpsons is up to date.