Design a Logo

I'm starting a private tutoring business. It's name is Specialty Tutor, LLC. Eventually, I will be designing an interactive website, whose URL and professional email I've reserved via Go Daddy. Right now, I need to start with a logo -- a logo that will go on a business card, the website, and professional correspondence. I've looked at some graphic representations under the category "education" online, and am terribly unimpressed with what I see. Would it be possible to start by doing something interesting with the letters "S" and "T," with perhaps an accompanying abstract geometric design? I need this to be very classy and understated, as I aspire to attract a sophisticated clientele. Or rather, I aspire to attract the sophisticated parents of my clientele, as they will be the ones who are paying for the service. My specialties include all standardized test prep, particularly the SAT and ACT. I have plenty of experience and a stellar academic pedigree, including a Ph.D.