In order to disappoint you least, I will just utter it in the beginning: if you're looking for something really enlightening, you better go somewhere else. The same applies if you're looking for nifty media, like icons etc. I suck at making them and since nobody else would create them for me either, there's no way I could provide any of decent quality. You gotta live with it.
Luckily though, there are plenty of nice graphics sites featuring those kinds of things, so you most probably won't be left in the cold.
...still here? Well, if that's the case, I might as well just wish you to enjoy your stay. But stay alert, as this site is in fact just one big spoiler to both KH parts actually. However, since I have not played the game yet, it does not cover Chain of Memories so far. Sorry for the inconvenience.
The site is mainly optimized for Internet Explorer, meaning that it has colored scrollbars and some link effects only visible there. However, I successfully tested it in both Firefox and Opera as well.