I've been thinking about this for a while, and I might actually do it. Pinball FX 2 is a great game from Zen that combines modern, hardware-based physics simulation with incredibly well designed tables (see
my review of several tables, elsewhere on this blog). I also have friends who are into Raspberry Pi hardware hacking and others who enjoy collecting physical pinball tables, so that gave me some ideas...
What if you picked up a junk pinball table from eBay or Craigslist and then put a TV screen on top of it? A 50 inch TV that's fairly thin should fit well, but you should probably measure the specific table and get something that will fit correctly. The junk table should not cost more than a few hundred dollars, and you'd pay that much for any decent piece of furniture.