Blood in the urine such as you had can really be scary!! But it sounds as if your treatment was absolutely correct and the diagnosis was about as good as it could be...no penetration into the muscle or other layers of the bladder.
Depending on whether the pathology showed "low grade" (very slow growing, not likely to spread) or "high grade" (much more likely to spread) your treatment may be a watch and wait..where you have cystoscopy exams every three months...or BCG.
Low grade, early bladder cancer is very easy to treat. However, it does tend to return. This is why you must be scrupulous about having your cystoscopy exams on time.
When you see the doctor at Dana Farber, get a copy of the pathology report. That will tell you a lot more about what type of cancer and what type of treatment are ahead.
Good luck to you.
Sara Anne