Yeah, furigana is when the kana are above the kanji.
Okurigana, I believe, are when there are hiragana in the middle of a word composed of kanji.
Also, there's an online bookstore that's actually based in the US, so you don't have to pay the same amount you did for your books on shipping! Haha..
It's called Kinokuniya, and it's pretty much really awesome. I've ordered from them a bunch of times; shipping is pretty reasonable like I said, starts at $6 and scales depending on how much you spend (becomes free at $100).
The only thing is that they have about 7 or 8 locations, so sometimes it can be hard getting everything you want grouped into one shipment.
Here's the link; if anyone wants help navigating it maybe I can make a guide or something.