At first glance, this ruggedized steel box looks kinda lame, but because it bolts to furniture from the inside (using supplied mounting parts), it actually wouldn't be a bad way to protect your 17-inch-or-smaller laptop in communal living situations.
For its $80, the DormVault also comes with a combination lock, but I'd probably invest in something a little more heavy duty as that looks to be the weakest link in the rig. Neat idea, though, assuming you're actually able to go about drilling holes in things.
• Rugged steel construction
• 16' x 13" x 5"
• Weighs 9 pounds
• Laptop Safe for Dorm Room or Apartment
• Attaches to Furniture
• Holds up to 17" laptops and Personal Accessories
• Comes with mounting brackets, multiple-size bolts, wingnuts and combination lock