Welding Tips and Tricks

...semi-retired now, and looking to learn a new and useful skill. Worked on a desk for most of the time, and have always found the creativeness of welding very appealing -- maybe I have time to learn and use it now. I am in the process of purchasing a MIG welder, and having troubles deciding between some possibilities. Have looked at the big-box-store offerings, but think I may go a step up - "buy once - cry once" they say. Would like to post a note asking for help deciding.

Cheers