So the link you gave doesn’t work, but I figured it out, and it redirects to http://www.imageworksstudio.com/ - this is the correct site, right? If it isn’t, then ignore the below…
The main menu items don’t have a “pointer” cursor when your mouse over them, not sure if this is deliberate or accidental. The sub-menus are a bit slow to react to mouse over, may be the server. You may want to work on the parent/child aspect of your drop down menus so the main menu item is still green while the mouse is in the sub menu.
The tabs on the main page, I think they should activate on mouse click instead of mouse over, this makes them a bit more universal - they caught me in surprise when I moused over them. This is also slow to load, and bogs down after a while.
Nice clean design, very shiny! :-)