Please don't take this as mockery at all, but this link might help you with the tight tires (park tool instruction pages). I used to do a lot of road biking and some road tires seem terribly tight, but this almost always worked.
These ($5 shipped) will get any tire off, one way or another! You might need to grind them a little to prevent scratching your rims, but they do not bend! http://www.google.com/products/catal...ed=0CF8Q8wIwAg