Eventer Marcia Kulak is about 25 or so minutes from Saratoga. Skidmore's riding center has a program with good instruction, Cindy Ford who runs the place was my first ever instructor. COTHer "Timex" is located just outside of Saratoga as well. For jumpers in the area I would recomend Betsy Worthington's Three Winds but it is a bit of a hike (45 or so minutes) from Saratoga. Not sure if you'll have a car or the willingness to travel so far (time management is part of the college experience!) but for jumpers it is the best place, hands down.
Resident racing historian ~~~ Re-riders Clique
Founder of the Mighty Thoroughbred Clique