Help/ Decision-decision to get a Mac Mini Server or not

I am naturally new at this, I have never dealt with a server before as an administrator. I am very interested in Podcasting and Wikis and naturally came across Podcast producer and Wiki Server 2 from Mac Os X server. How hard is it to set up, and how hard is it to run and administer? What kind of resources would I need and what kind of support? I work at a University that does not haveMac IT gurus I can just call and ask for help, they only deal with PC's. Any help is appreciated before I make a decision or forget about and go low tech ( Fred Flinstone like)