@Crazy Nep: Thanks a lot bud for your suggestions.  I called that Nepalese travel agent from the no. you gave it to me. and he quoted me for sth like $1800. I think it's kinda expensive as the travel is only via Melbourne to Chicago.

In addition to that, haven't gotten the visa yet. How hard is to get B2 visa from AUS to U.S for the full time student? The visit is only for three weeks btw.

If you could share those information, i would really appreciate it.

Thanks

Sirus_Me