regarding the comment to mention another offer, that is cool if you really have one. It wasn't clear if the poster was recommending a "bluff" which is not a good idea at all.
More important than the offer is how will the experience increase your value in the market. http://jobhacks.wordpress.com/2007/08/01/career-equity/
In the long run, a "bluff" is a real bad idea. What right will you ever have expecting open honest communication from someone else if one of the first things you ever did to them WASN'T?
regarding the comment to mention another offer, that is cool if you really have one. It wasn't clear if the poster was recommending a "bluff" which is not a good idea at all. More important than the offer is how will the experience increase your value in the market. http://jobhacks.wordpress.com/2007/08/01/career-equity/