I think one of the thing that helps me is I've been programming in various languages on PC's for about 10 years now.
Also I'm using the FlashLab system from Reynolds Electronics so the development is very easy and I don't need to worry about moving chip to programmer and back to circuit each time I make a small change.
All helps anyway

I might end up tapping your brain again soon anyway Darrel - got some interesting maths that's hurting my brain again....

Cheers!

Leigh