The Mac Mini gets so little hands-on use nowadays that I've even unplugged the 23 inch Apple Cinema Display from the Mini.
But the Mini remains our media center, variously controlled via Beo4 or either of our iPads or either of our iPhones or either of our Macs...
... iPad and iPhone control is usually via LinkRemote or via Screens.
I strongly recommend the Screens app. I've tried several other apps to remote-control the Mini and Screens has proven to be the ultimate solution.