Ricky, get yourself an Alpkit gamma. It's the dogs danglies. I run with it all the time, it actually makes cars dip their headlights when they see you! Also excellent for trails etc. Really awesome piece of kit.
Stick at it Rodney, I'm bringing my "running only at low HR" training to a close. Am starting training for the Seeley as well. I'm actually going to train for a 10k! hoping to break 45mins, will continue with my long runs etc at very low HR.