Wall mounting your TV is a great way to piss off your landlord, but if you don't want a huge entertainment centre taking up space, IKEA Hacker has a great solution: attach your TV's wall bracket to the STOLMEN pole mounting system instead.
Not only will this save you from drilling holes in your wall, but it's pretty space-efficient, too, making it ideal for those of you that don't want big, hulking entertainment centres in your living room. The STOLMEN system is adjustable so it can fit the height of any room, and with a bit of drilling, you can mount the TV between the poles as if you were mounting it on a wall, yet without making your landlord angry. Hit the link to see more.
Stolmen Plasma TV & gadget mount [IKEA Hackers]