I looked at the pre-med clubs at my school and decided I didn't like how they were similar to info-sessions every week. So I made sure we had a mix of visitors and a mix of information meetings. Visitors were usually dentists (oral surgeon, orthodontist, and two general dentists last year). We had a meet and greet dinner with neighboring dental students, who were so helpful and made the dinner our best event of the year. Our school hosts a premed and predent fair with admissions officers, so we didn't contact any schools to come visit.
Then for the information meetings, sometimes the premed office would host a personal statement or interview tips meeting that we were request our members to go to. More often than not, the e-board came up with ideas and power points themselves. The topics included: most recommended DAT study materials, lists of recommended and required classes and what they correspond to in our school, mock interviews specific for dental schools, etc.