as per others I am not a lawyer however if it was me I would register the domain - if Match.com are on the ball they will send you a letter within a week or so of cease and desist in which case you do exactly that and all it has cost you is the registration fee. The word Match is not trademarked and you cannot trademark a web domain, i.e. you cannot trademark match.com, so hence you would have no issues in respect to trademark infringement. In this case all they could get you on is registering the domain in "bad faith" which is very difficult to prove and very expensive to try to do so. My guess is that they would try to bluff you and then if the bluff doesn't work they will give you an offer for the domain. I do not see any issues whatsoever with copyright - a domain cannot be copyrighted, only content on the website is subject to copyright.
Good luck - I think the name has value whether for a credit rating check or a new concept dating site.
cheers, Mike