How can i prepare myself?

Hi folks..I need some suggestions & tips!!.I should be moving to CHICAGO sometime in july'07.I have a diploma in Hospitality industry and currently working as a service admin &sales in the caribbean.Im kinda worried about getting a job when i get there.Is sales a good field or should i consider another field and concentrate on it??I would also be doing my associate's in accountancy or business adminstration in a month.How good are the job prospects once i complete it?Thanks for your time and inputs.