is SAT that crucial?

<p>I am an international student looking to study in the USA. Im a freshmen but i havnt done the SAT's yet. some universities dont ask for it since im an international student. however, is it still possible to get accepted into a university that asks for the SAT with really high marks in igcse's ( 6 A*s 2 A 1 B ) and recommendation letters, high ielets (8) and toefl (105 )marks and lots of activities and clubs (leadership) ?
Im doing the SAT on october 1st. the day of the deadlines for most universities for spring admission. would they ask me to send them the mark once i get it if i tell them my situation? HELPPPPPP! so far the only good universities that dont ask for sats if ur an international student are purdue and penn state.............. any more ?</p>