My favourite site is this one Your title here but like mentioned above the navigation links could use some work. Maybe instead of having the navigation buttons cut u could create a tranparent rectangular box which stretches the width of the header.
This site is also coming along nicely index but i would work on the left navigation also. I dont like the bubble effect.
you might want to consider having a gradient with colors that aren't that far from eachother, like you have dark-grey -> light grey.. try using dark-grey -> grey