Barbara Streisand Presale Tickets for Chicago

The United Center is having a special password-less presale for Barbara Streisand. Just click this link: http://ticketoffers.unitedcenter.com/step_1.cfm?cmp=77 to order tickets. Only problem is they appear to be category tickets so you will not know your exact seat location. These types of presales appear to be getting more common and pose some risk, but can also yield great seats. Good luck if you do it.