If you are qualified there won't be any problem. If you are considering it seriously start looking for colleges and prepare for GRE. Its too late for Fall '05 but there is enough time for Spring '06. Admission is competitive and is based on GRE score + experience. You should contact faculty member directly who has similar interest as yours. You won't be admitted unless one of the faculty members is willing to be your academic advisor. Don't waste your time. The best would be to look for colleges that have the program you are interested in and contact faculty members.