SGU says 1000 non-refundable deposit, and then another 4000 (doesn't indicated non-refundable) by may 15th, and then the balance (of the 1st term i believe) by july 15th... so if you do all that, and decide not to attend will you be refunded everything (minus the 1000 non-refundable, assuming you decide before classes begin)?
The deposit is usually from 500 to 1000. Each school is different. You don't get the money back if you're not going to attend. Most schools require that you pay the deposit within a month of receiving an acceptance letter so if you're applying to several schools, try to decide on which one you'd like to attend early and send in all your applications at the same time.