I'd like to travel to the US in January for about 80 days. I studied in the US from 2004-06 and also had a different student visa denial back in 2006. The purpose of my trip this January is to visit friends and old schoolmates,attend some music business seminars(i've already paid for)as well as travel a bit. From what i've been told one becomes eniligible for VWP after a visa refusal. However,i completed ESTA just a few weeks ago,mentioning my past visa denial on it and my ESTA was approved. At the port of entry,i am capable to present 2 bank accounts with my savings,address while in the US,receipt of my short course payment,as well as a return ticket. I would like to book tickets asap,but if it's going to be risky due to my past status i'd rather cancel the trip. Any advice/info please?