I've been living with a dog for a few months now, and the dog sheds a lot of hair. I'm positive alot of wayward hairs have gone under my keyboard and other dirt particles, etc, have gone into other holes (i.e. I can see things blocking my speaker mesh). I have since become far more stringent about the dog being in my room but was wondering about how I could go about cleaning the computer. Would it be okay to carefully open the computer up and clean the stuff out? I know how to open the computer but what products, and/or techniques should I use to get rid of the foreign particles in question?