Recommended way to remotely control your Mac Mini from your Macbook Pro at home
Is your Mac Mini Intel-based? If so, then it, along with your MacBook Pro, has gigabit ethernet. My suggestion would be to get some cat 5e or cat 6 cables and a gigabit switch. Still, I personally use Apple's "Screen Sharing" remote desktop client and server built into Mac OS X, and it works fine, and has acceptable performance even over wifi (or remotely through Mobile Me).