Sounds like your fuel pump is bad or the filter in the tank is bad. Can you hear the fuel pump whine for 2-3 seconds when you turn the key to "on"? Have you tried a shot of starting fluid in the throttle body to see if it will start?
Try this also, disconnect the negative battery cable for a couple of minutes, reinstall it, and then try to start it, probably won't but after you try this, check the computer error codes and see if anything pops up.
