just some thoughts I had while glancing it over, looks great so far though!
general layout: will the centered layout also stretch the gray area on the left? if so, you may want to re-consider that design choice since you will be extending an additional visual line while creating a lot of negative space that may be deemed unecessary.
menu system: is the menu structured by importance? you may want to talk to you client to what will the be most clicked link and place that on the top of the vertically aligned menu, just makes the system a little bit easier for the users.
logo placement: have you considered placing the logo on the left hand side of that division (white & grey)? it seems a bit right-heavy at this point if this will later be used as a centered page.
great job with the organization of the 4 elements for the main news, and I think when this site is completely finished, it will be extremely optimized for download speeds :)