I know you can move the files over to your other drive and then move your home directory...
To do that you go to Accounts in System Preferences, unlock if necessary and then right click on your account and click Advanced Options. There you can change the "Home directory" location to where you copied the contents. It'll have to reboot when you change it.
Problem is if you do that you can't unmount the drive the home directory is on (in case you want to only use the ssd on trips to save battery life)
Right now my home directory is on my SSD but all my movies/music etc is on the SSD. I'd love to get the home folder icons back in the finder sidebar. You can just re-create the empty folders in the home directory and copy paste the folder icon from the get info window (top left corner, click on the folder icon), but this doesn't get you the nifty finder sidebar icons...
Help anyone?