I went out to FL last year to do some flying as one of my UK instructors regularly goes out there to teach and can do CAA examinations. I did an FAA multi and a CAA night rating in a week with Sunrise Aviation at Ormond (across the tarmac from OBA) and was quite happy with the airport and the instruction. The instructor (UK one) wasn't very flattering about OBA, but then he wasn't very flattering about Sunrise either, and has since moved his 'operation' to St. Augustine.
I couldn't complain much about Sunrise as I was thoroughly impressed with the amount I got done in one week. For example, the Seminole I was learning on had an electrical failure at one point, but was ready for a lesson in less than an hour. As with OBA, a lot of the instructors were Embry Riddle graduates and really knew their stuff.
The chap from the UK I mentioned flies for Western Air at Thruxton when at home, so you might consider giving them a call if you want to find out more.
Ginger
P.S. Ormond is a great little airport. Do some night flying and a few touch-and-go's at Daytona - it's unreal, especially for someone who never used a 'proper' airport while training. By proper I mean one that had big jets parked at it.