I don't know what your plans are, but if you have a lot of stuff to move, my boyfriend and I are considering a U-box. For like $1500 someone will pickup all your stuff, drive it across country, and then deliver it to your new pad. ($1500 for a one-bedroom apartment.) Since we want to take the opportunity to drive across country and see some cities along the way (we're moving from LA to Alabama), we thought it'd be easier than lugging a huge trailer.
I will say, though, as someone who has moved across the world twice: only take the stuff you really need. You'd be surprised what you can live without and what things will be irrelevant in a new environment.
@Cra2y_G1raffe: We're moving with a red-tail boa snake. I feel you on the pet hassle