Thought I'd chime in. This is the model number of an 80gb Toshiba drive I installed in my H10: MK8009GAH.
It was roughly 1mm thicker, but the different thickness was only in the center the edges being thinner. It fit very easily. I did have to trim the rubber thing so the connector could be moved over a little. Also, and this is important, the connector itself calls for a thinner ribbon cable. The existing one has a "backer" on it which I "suppose" could be forced into the Toshiba drive but I very carefully scraped the extra material off of it. It worked very well that way and still can be used on the orig HD if needed, though it will be a little loose.
Also, I had trouble formatting it in the H10 itself. I never did find out why, but I simply installed it in an ext enclosure and loaded everything from the original HD before placing it in the H10. From that point, I can access it as normal and functions perfectly
You might check on the "MisticRiver" forum site for more info as there is a lot there.
I also installed a 2200mah battery with no problems at all. These 2 mods, and of course adding RB, made a really nice player out of it.