Didnt an Emerald Airways Andover (or HS748?) abort above V1 a year or so ago? I must admit if I was taking off full-length in my 737 on a 12000ft dry runway with the runway-limit V1 greater than V2, and I heard a loud bang and fire warning at Vr (or just after), Id bloodey stop too. Rather have the thing burning on the ground than in the air anyday.