Hey N2
That sucks about your other job falling through
The float/bush world seems pretty competitive right now too. I've spent two summers working the dock, logging the odd hour here and there, but I couldn't get on the insurance until I logged enough time.
I've been talking to a lot of people and I don't think 50 on floats will get you flying anywhere right away, but it will definately help get your foot in the door. Some bush experience would be a lot of help too. Chainsaw, carpentry, small engines, propane heaters, fishing, hunting etc.
Good luck,
let us know what you do
Max