I would come over as a professional pool player but even thats different over there lol. I hold a qualification in road transport but then the lorry driving rules are probably different too 
Years ago I looked into getting an American Trucking company to sponser me but I didnt like the whole immigration set up.
See your really at their mercy. If they dont pay you or decide to really use you like crap, basically its to bad. They can and will just have you deported if you have any complaints.
The only resonible way to immigrate to the US that I know of is if you have the money to start a company that will employ two Americans full time.
Immigration is really messed up, both in the States and up here in Canada. There is a reason why middle class types from similair cultures dont immigrate here.
With the oil boom here in Alberta what we are doing is giving out temporary working visas. All kinds of good jobs here but the cost of living is so high that you can be making $25 an hour and still be homeless. I dont think its right to fool all these people into coming here.