I am a South African who is going so study in the US starting September 2012. I currently have a Visitors' Visa valid until 2012. I will be entering the US at the end of May to have some time to travel around before my studies commence. However, as my university decisions are due to be released in April, I do not know if that will leave me with enough time to apply for my Student Visa before I leave. If I don't have enough time, will I be able to complete my application (i.e. go for my visa interview) in the US?