Which welder to buy?

The only welding I have really done was when I was younger, in high school, and I would hardly call it welding.

I would like to weld patches in the floor in the Dart, and figure it would be something good to learn. Obviously I'll practise on scrap before trying on the Dart.

My question is, what type of welder should I buy? I was told I should by a wire feed, and not a stick welder, because a wire feed is best for thinner metal applications, where as a stick welder would just basically melt holes through the floor because it is thin.

Give me some advice please.