Additionally, If it would keep track of board statistics separately (as well as together) that would be awesome.
SiteA.com has forums a,b,c which have a combined 1,000 topics and 10,000 posts. It shows that on the bottom of Site A.
SiteB.com has forums d,e,f which have a combined 2,000 topics and 20,000 posts. It shows that on the bottom of Site B.
It shows "Network Statistics" on the bottom of both sites (3,000 topics and 30,000 posts).
IP.Content definitely seems like the way to go here. I've set it up similarly and no complaints thus far. It really is very customizable and a powerful piece of software. I can't really think of anything you couldn't do with it if you tinkered around enough.