rhornsby - 3:10 am on Mar 26, 2011 (gmt 0)
I am a lawyer, although I don't do trademark or copyright law. With that said, the issue is whether the domain name contains a trademarked phrase, a business name, or commercial likeness. If it does, then you could probably be sued.
However, if the name itself is for two general terms that are not clearly identified with a specific business like "London" and "business" then they have no grounds.