At work we went with one of the portable air tanks that we fill off the buildings compressed air supply (fed by mutiple compressors). The tank, fittings, and hose were fairly cheap through Grainger, and we haven't had to get a can of air since so it was a good investment. If you already have a compressor it's not a bad way to go. -- Andrew S. Zbikowski | http://andy.zibnet.us SELECT * FROM users WHERE clue >0; 0 rows returned