How to clean PS3/TV???

[JS19]

So I'm cleaning the place up a bit, and I notice that my PS3 and TV have accumulated quite a bit of dust. Obviously, I give them a quick dusting, but what's the proper way to make sure the dust doesn't pile up on the inside? Like I've stated many times before, I know next to nothing when it comes to this electronic mumbo jumbo stuff, but I'm assuming a dust buildup on the inside can't be too good. My initial thought it to go buy one of those dust blower spray stuff, but I figure I would see if anyone here has any suggestions before I go blowing dust all over the inside of these things.

[hukarez]

I usually use one of those disposable Swiffer dusters, and then follow up with one of those air can dusters.

[Mizzou B-ball fan]

Using the air can dusters on a PS3 (or 360) isn't the best idea. It ends up blowing the dust back into the unit. You're better off removing any game discs from the machine and then using a vacuum on the vents to pull the dust out.