The color scheme as-is looks fine. Just be sure it matches any colors your team may idenify with.

My team color is red. If you do decide to add in a right sidebar, and keep the left one, you're going to have very little space in the middle to post content. At least on 1024x768. Maybe have a dedicated page for the calender? (I just clicked on WHAT WE DO and found a nice little calender thing, nvm) Style is fine, just make sure you have content, shiney pictures, and you should be good to go.
Oh and BTW, I like Sandwich too!