i am about to change careers and go into the oil and gas business. i am going work for a firm, where they pay you like a contractor. i will have to take out own taxes and what not. my question is, should i incorporate myself (c-corp/s-corp), LLC, or 1099? i also have 401k, in which just i contribute to it. should i roll this over into my business, or keep it separate? roll it into an IRA? i am new to this and will be looking to get this started asap. thanks!