Canon 580EX vs. 580EXII

Hi;

I just found out that Canon has replaced the 580EX with a new, much improved model, the 590EXII. I'm wondering if anyone has compared the two strobes in terms of size & shape, as well as button location?

As we sell housings for them, I'm trying to determine whether, or not, our current model will fit.

Any links to comparisons would be appreciated.

Thanks,

Jack

you are probably having trouble finding the specs on the flash b/c its the 580exII that replaced the 580ex.