Ah, I've seen Waking Life now and can honestly say that I loved every single moment of it. While it did jump between different ideas a little quickly, each scene was though provoking in it's own way. I did love how the visual style changed all the time as well, it gave the film a nice dream-like feel to it.

One idea that the film did bring up was the few moments of dreaming before our brains die, in hat respect I retract a bit of my post and say that it may be possible to gain lucidity at this point (if indeed we do dream, as the film suggests) and use it as a way to make it seem like these fleeting moments are longer and in a way 'cheat' death, or at least make it seem like it.