Hit me again...Nick, I just saw this old posting, sorry for the delay in responding...
Special Relativity suggests that we travel through space-time at a constant speed, C (popularly known as the speed of light). If you are moving through the space dimensions at a very high speed, say very close to C, then your speed through the corresponding time dimension approaches zero, that is time slows (for you). For those of us (actually all of us) travelling through the three space dimensions at only a very tiny fraction of C (say walking or driving), then we are also traveling through the time dimension at nearly the full value of C. It gets confusing because we normally associate of speed with physical distance, whereas relativity says that space-time is the 'distance' we should be measuring. In everyday life of course we never travel fast enough to notice time slowing down - although it does feel like it at work on a Friday afternoon**.
So... at driving speed you are traveling into the future (of space-time) at (just a tiny fraction below) the speed of light (C), thus my statement "Technically you are going to travel into the future at the speed of light."
I'm not sure anyone really understands what C is yet other than the ultimate speed limit, the speed limit in space-time (not just space). Science only got this far because the mathematics works and all the evidence collected suggests that space-time and C give 100% correct predictions.
** You never feel as if your clock has slowed down (when you travel near the speed of light)... you experience what feels like the constant progress of time and only notice that you are running slower when you compare your clock to someone else's clock, and they were traveling slower through space than you. At the limit (C), when a photo strikes another particle, it would experience (if it could experience) an instantaneous aging of the universe around it and a very large displacement in its position in space. It would be like "whoa, WTH just happened!". If a spaceship could travel at near C with people on board to observe, they would see the aging of the Universe speed up around them.
So if I piss off the bridge of the Enterprise going warp 8, who get's wet and when?