Are my SAT I scores good enough for top universities?

Apply to every school you are considering. If you don't get in, you don't get in. But don't lose the opportunity you have to be accepted. I didn't think I'd get accepted to A&M so I chose not to apply. Two months later I found out I would have had automatic acceptance. Find an English teacher you trust to review your essays and make suggestions before you send them in on your application. Good luck!