Ok, I got the cylinders 275cuft o2 and 230cuft acetylene. I had them filled and if anybody is interested, acetylene costs $.40 per cubic foot. The store was kind enough to give me a 15% student discount and paid less than $130 after taxes and fees. As long as I don't do much cutting, that should be about a 5 year supply. I have also bought a Smith medium duty welding kit (it was only $5 more than the light duty and came it with a tool box) and 10lbs of 3/32 RG60 filler. Hopefully, by the end of the week, I'll be fixin' all them holes in my truck as well as what ever else breaks around the house.