Isn't that interesting... .
Uninterested means that something is not of interest to you. For example, a US citizen who doesn't care about the 2008 Presidential Election. Di…sinterested means you don't have a stake in the outcome of an event. For example, if you are a citizen of a different country and don't live in the US and cannot even vote, you could be called a disinterested party..
With a slightly different twist, you might be valuable as a disinterested party to help friends with various kinds of problems, or as a member of a jury. (MORE)