taxes for aliens

hi,
I am an italian expert of marble and granite. A company in Michigan and onother one in NY like to hire me. Since I never worked in the USA I need help about
salary: they indicated a groos figure, what I have to deduct to calculate the net I will receive clean in my pocket?
tax-rules: how is the percentage for me (foreigner, single)
the visas: contract will be year by year. Which visa to apply for?
contract : what kind of contract is prefereable? what I have to include in it?

Please advise me with any useful additional information
Kind regards

If you are living and working in the US, you will be taxed on the income you earn in the US the same as a US citizen would be taxed. For an excellent booklet on the US Income Tax, download for free IRS Publication 17, Your Federal Income Tax at: [url]http://www.irs.ustreas.gov/forms_pubs/index.html[/url]

As for your other questions, I suggest you post them on our Immigration Law bulletin board.

I would also suggest you download and read IRS Publication 519, Tax Guide for Aliens, also at: [url]http://www.irs.ustreas.gov/forms_pubs/index.html[/url]