i also really dig the look of this theme, but would also like a hidden dock.
the biggest (and it's really not very big at all) issue i have is that i'm using it on a hybrid 8330, and the AM/PM font on the homescreen is the same size as the time, so it doesn't fit in the window.
i imagine the theme builder font you've used is not supported on the 8330, so it defaults to the larger size. weird.