FranticFish - 10:55 am on Sep 17, 2013 (gmt 0)
Tonearm, I think there are a number of different ways to find out the hostnames that have used the IP address(es) you're going to be assigned. Searching on those should let you know what sort of business activities have taken place.
Also check that those hostnames resolve to a new IP address. A client who bought his own name as a .com domain was shocked to get hatemail from people who insisted he was spamming them. It turned out that a previous host for the domain he bought had not deleted the reverse DNS entry (or PTR record) for the domain, so it was implicated in spam being sent from a completely different server to the one he was hosted on. He was 'named and shamed' on at least one busy anti-spam forum despite being completely innocent.