Hmm.. I see your point and I agree with you wholeheartedly. While I would find this usable and I would like it, I can appreciate that others would not.
Yes, I agree that getting rid of the scrollbar would be a stupid move. Wow we're all like one big happy family here
Attached is a quickly done mock up of what it would look like.
Although on this example it seems not to stand out enough, bear in mind, it would only show up when you scroll, so you would know that it is the scrollbar.
Step back and imagine that scrollbar-less window on your desktop.
That would make me go "Wow!" not vista. The pure simplicity of it, and the functional usage.
That said, I do still see that other people will prefer other things, that's your right and your opinion.