Good stuff Vic
Couple of quick additions: You can also find those circular foam disks at Michaels or other craft stores. They sell them to make flower arrangements and come in many sizes (cheap too). I mostly use rod wrapping thread in size A. There is less tendancy to cut the tail with that stuff than kelvar thread
If you check around at your local fly tying place you can find a tool for sending your thread through the bobkin (around 50 cents and worth every penny).
One thing I do different is that I'll place the deer hair on the hook before I trim it. Make a few wraps to secure it, spread it around the hook as you suggest, couple more wraps, then trim the hair with a single edge razor. Cut at an angle as you suggest. I find it easier to get all the hair even this way if I have to add more than one bunch. Probably more of a personal thing. I also like to add a drop or two of Zap a Gap (the stuff in the pink labeled bottle) on the wraps/hair before doing the final wraps. Add the zap, then continue wrapping to finish up. This will sink the zap into the threads/hair. It will not come out once done this way. A little head cement or epoxy on the wraps when done and you have the perfect wrap.
Jigman