Also have a good think about the location you're going to run all the connections back to. Even if you might be only starting with a small router in the future you might be adding rack mount switches or even a small home server or NAS. Ideally you want a dry well ventilated location where noise won't be an issue.
And make sure it has plenty of power, ideally a dedicated ring main.
When planning the location of sockets don't forget a few for wireless access points.