^^I call that "Sarah's Crazy Legs". It works, and works well.
My advice would be to try a sh!t load of different stuff until you find out what works for you. I'm learning that gels might not work for me, and am (was - it's starting to snow now so my 2 or 3 hour workouts go on hold for a while) starting to go to all liquids like Sarah.
Hammer Nutrition is awesome, and I think you can get in in Oz (
Triathlon Training Marathon Training & More - Hammer Nutrition). Good luck!
E