Using your job's VLK is about to get messy
MS has deployed a new version of WGA (Windows Genuine Activation). I've been reading ( http://www.msfn.org/board/index.php?showtopic=93555&st=0 ) this new version is more aggressive as it collects VLK (Volume License Keys) and IP addresses. MS is obviously trying to crack down on leaked VLKs that are legit so they can contact the VLK owner and get them a new VLK and invalidate leaked VLKs. The question is, how far are they going to go with this. Somehow I hardly doubt they'll crack down on setups where they are just a handfull (a dozen or less) VLKs that aren't local to the original vendor. It's simply too much hassle to have a shop re-key all their PCs (although a network based app to do this could be very easy to deploy).
Despite, be warned MS is serious about non legit setups, and borrowing your job's VLK for home use is included.