OK here is the deal....

I usually open my case up and blow out all the dust off my fans,hsf, mobo etc. about every couple of weeks or so....I am getting tired of buying these $4 and $5 cans of compressed air....

Is there a cheaper way of doing this with out spending the $$$...something I can rig up to blow a hard stream of air to get all the dust out?

And dont say blow with your mouth :p

use a vaccum to clean it out...... always works for me! :)

Yep, I too use a vaccum with a nozzle on. Be careful though, turn of the power and don't let it touch any of the main components.

i use a hair dryer m8, make sure you blow out cold air not hot.

There is actually little vacum cleaner for computers, use one of those, or go with the above suggestion (hair dryer).

Regards