All depends on the job Ryan. If it's thin stuff (ie.auto-bodywork) definately gas MIG, if it's thicker section stuff you are OK with gas-less MIG.
weldequip
i have a gasless MIG and it works on the angle iron that i was using until i tried to replace the wire. but i am thinking about getting an arc welder as well but im just not sure what is better for the angle iron. what do you think
i think your right. one other thing is that i believe that arc welders are a little cheaper to buy and also to run.this is only important because im only in high school and i dont have alot of money to spend on a welder so cost is a big issue