OK so some folks may think I am some what of a butt how ever I will every now and then decide to be a nice guy and share with the group
That being said here it is the Easy Cheep CO2 set up
first you need to find a gas supply house ,most towns will have one
you need to purchase a 20# beverage grade CO2 bottle
note that 20# bottles will be much cheeper than a 10#er because they are common in the food service ind. ,beer taps
next you will need to find a welding supply house ,may be the same place
there you will need to buy the CHEEPEST OXYGEN cutting regulator that has a 0-100psi range
you will also need to buy a nipple and a nut to adapt the oxy reg. to fit the CO2 bottle
last you need to buy a quick dissconnect and put it all togeather

This is the set up that I am running right now and I love it I can run air tools ,the works
the best reasons for going with the 20# beverage grade is that you will never need to pay for a recert or pressure test on the bottle when it gets close to the date just swap it out for a new one
they also come with a good handle on them so you dont need to buy that

If you have any questions just ask I will do what I can to answer
OH I know that some one will ask but if you shop around in a bigger town this set up can be done for <$200