To answer your original question, google Jared Polin or Fro Knows Photo; his reviews are interesting even if you don't agree with everything he says.
Thanks Jim, will do. Are there also any books on lightning that you would suggest me read?
Electrical storm lightning, or lighting? For the latter I'd suggest Bruce Dorn on Youtube; if you can get past the glasses he has some good ideas that you can use without spending a mint. For the former, get yourself a thunderstorm, a tripod and a Nero Trigger.