I've started pricing out Paris. Not necessarily flights, not nearly at that point (probably next year), but rooms/tickets.
@WDWFigment's site is a wonderful resource. Disney Tourist Blog. I often check for new posts on his site. I think he and I are similar in quite a few viewpoints. I really enjoy the blog.
It's been hard at times to find information about the other parks around the globe but his site (and a few others) are really expanding that. It's been much easier the last few years to find info, especially now that the bloggers have gotten out of the safety of WDW and ventured to the other places.
TDR Explorer also is a fantastic resource for Tokyo Disney.