I work for a U.S. PR agency that represents ticketsnow.com and it is a very reputable, safe destination for purchasing premium event tickets.
Take a look at the following link. It is an article out of The Los Angeles Times last week. The LA Times does not print bogus Web sites in their pages...
http://www.latimes.com/sports/colleg...rts-coll_baske
In fact, I myself have been using the site lately to pick up some baseball games (NY Mets) for the upcoming season. Got my tickets in the mail last week.
Happy Hunting....cheers
Steve