You might also look at the HTP welders. They have cold wire (not hot) till you pull the trigger and they do stitch welding and have a lot of features for the price. I considered very seriously getting one, but I have a century 225 that was given to me and gets the job done. Its hot on the wire when its on, so that's a bit of a pain, but, when I got the auto darkening lens, then that became a non-issue.
I have been using flux core though, and based on the rest of these posts, I am going to get gas fittings and give that a whirl. Welder has a gas conversion option.
