Looking for a good site for Kotobukiya Final Fantasy Figures

For local, you should go with the Diamond Comics Distributor website. You can use their store locator feature to see which comic book stores in your area are part of their network. I do know that the Advent Children toys have been sold through DCD, but I don't know if they're planning on importing the FF8 re-release toys. The prices are actually better than if you were to import the figures yourself. Here's the direct link:

http://www.diamondcomics.com/

And here are the toys they're offering:

http://www.diamondcomics.com/search/search.asp

As for the FF8 figures, try play-asia.com, ncsx.com, or lik-sang.com.

yeah, Imma go check my local shop about doing special order...
I know Hobby LInk Japan carries em, but I would have to but a decent amount to justify the shipping to myself.
hmph.

For the Advent Children figures, try your local comic book store. My store still has the Tifa and Vincent figure at retail price of $20 each. It seems Sephiroth was the only popular figure in the set since Cloud is so expensive because he is only available with his bike.

Alternatively, Play-Asia is taking pre-orders although their release date indicates March '06.