Yeah, get a Mac-Mini, simply awesome!
I wouldn't bother with the Mac-Mini Server but not because it doesn't have the DVD or BlueRay drive, because you simply don't need the server version.
I've never put a single disc in my Mac-Mini. Who wants to bother with crappy media these days, you won't catch me buying a single Blue Ray disc either, I've wasted far to much money on ever changing media circus over the years, I will never go down that road again!
Put Plex on to manage all your digitally stored media, iTunes Music, Pictures, TV Shows, Movies, Hulu, Netflix etc etc.
Add the Aeon skin to go with it and it will show up any other system out there!
If your the kinda person that doesn't have an issue with sharing someone else's tv show recordings, marry up Plex with SpearNZB and you can effectively season pass all your favourite shows, downloading them instead of recording in real-time and going down the messy tuner route etc!
You then have a complete automated system for your TV with amazing synopsis and artwork to boot oh and no commercials since its already removed from the nzb.