My first post.
I just wanted to say that a career in Physics might be great for you. There are a lot of things happening in many fields of Physics. For example, in a few years we should be able to detect the elusive Higgs particle, which may or may not conform to theoretical predictions. If it doesn't we may need an entire new standard model for particle physics.
You being a welder and mechanically inclined does not send you right to engineering. Experimental physics would give you a chance to put those skills to use to discover new physics.
It would also give you an edge when beginning research as an undergrad. Most of us undergrad physics majors are just pencil-pushing nerds. You have a valuable skill. You should look into experimental physics and see if any fields tickle you.
