The new Macalester dining hall and campus center is technically called "Ruth Stricker Dayton Campus Center", but naturally that's too much of a mouthful for most Macalester students. Many of the "old-school" students who have been around since the original Kagin still call it "Kagin." Some call it "New Kagin," which is strange since "Old Kagin" was smashed to bits (mostly between 7:00 and 8:00 in the morning) recently and a new building, actually still called Kagin Commons, built in its place, and thus the new Kagin is thus referred to frequently as "Old Kagin."
Old Kagin, or as it's properly now called, Kagin Commons, now indeed houses a computer lab and a ballroom, and also the Community Service Office, the Internship Office, and the Career Development center.