As I've stated in another thread I love the color scheme you've chosen. It's so often we see sites using the common colors as they are easier to work with so props on stepping outside the box. Clean use of the drop shadow. I like the fact you've removed the cellspacng as it suits well with your layout. I did that in a prior forum design and it too was well received. Your Calendar flows nicely.
Since IE and Firefox renders padding differently may I suggest that you use nowrap="nowrap" for your login box so that the "User Name" column does not wrap in Firefox. I'm curious to see how the postbit will render on resolutions 800px in width? Since your site is wrapped down to the Footer what if you place the Header/Logo in the wrap too?
Hmm. Sorry I didn't give you any technical feedback. I'm still looking...
Props to you once again! :classic: