I go through way too many of these cheap cans of air and am looking for something a little more permanent. I was thinking something along the lines of a small, portable air compressor with a nozzle that would allow me to blow dust and debris from machines. Short of playing MacGyver on one of these: http://www.doityourself.com/invt/u895243 does anybody know of a good tool? -- Donovan Niesen