Make sure the infrastructure cabling is not in the cabinet against the wall as it means cabling can only go one way and getting to the other end cab is a pain.
Mind you - If I was building a new server room from scratch, I would not be relying on air con. Be using a small air con pointing at the front of the cab to provide constant temperature controlled intake, and sealed-back cabs with direct cabinet ventilation to the outside for a LARGE saving in the amount of air con needed. Kind of like a modified version of dhick's "cold aisle" plan except instead of having an actual cold isle in the room, the cold isle becomes the back 20% of each cab and all warm air gets sucked straight up and outside.
You lucky dab - i'd kill for a new server room.
You should see my old server room after the flood! I think it shocked them into getting a new room :-)
I have been thinking about CAT5E/6 cabling for the server, and was thinking of using patch panels to make it neat and tidy, would this be over the top?