Macintosh User Group (MUG) members who are planning to attend the Mac Design Conference & Expo in Chicago, Illinois, can receive a US$50 discount on either early or standard registration. Before April 30, the user group price is $349; after that, it goes up to $449, according to The MUG Center, an online resource for Mac User Groups. Both prices reflect the discount that can be obtained by using the special user group priority code. The Mac Design Conference will be held June 2-4 at the Donald E. Stephens Convention Center.