|Just happened to come across this, don't know your status on this but if you are still testing, here's my input.
-Page keeps changing size depending on which aspx page your filling the content place holder with, e.g contact page is extremely thin.
-Your master page should always fill or at least appear to fill the browser.
-Logo is pixelated and needs anti-aliasing
-Lack of visual appeal... have to agree with Richard on this. In this day and age, if you want a professional looking site, the bare minimal is hover over effect for menus, yet nothing happens on your left menu, which really looks like you just stuffed some hyperlinks there.
Sorry but didn't have time to sign up and test the insides of it, but I'm sure you've tested that yourself, I know what you already done takes a good amount of work, but it could still be better.