The user manual for my Miller 211 should be called Welding for Dummies. Plug it in, turn it on, turn on the gas, dial in the thickness of the metal you want to weld, dial in the diameter of the wire you're running, and pull the trigger. You really have to work hard to screw up a weld with this thing. Swap plugs and run 110 if you have to. Yeah, I had to save up for while and catch it on sale before I could get it, but it was worth every penny.
Heads up for anyone just starting out;
You can scrimp on the welder itself if you must, you can even get away with blowing off buying decent leather welding gloves, but the MOST important thing you should do for yourself when starting out is to get absolutely the best welding helmet you can afford, even if you have to wait to start welding until you've saved the money up for one.
Lots of cheapies out there, but you owe it to yourself to go to a professional welding shop for this one. Take the time to try on a bunch of different ones. In this day and age auto darkening is a must. Getting the one that feels the most comfortable and allows you to see the best will not only save your eyes, but allow you to make to the best welds possible with any given skill and equipment level.
Oh, if you don't think saving your eyes is one of the most important things you can do for yourself when you're young, wait until you get old and didn't do it.