How can I change the apperance of terminal to make it indentical to Ubuntu's terminal
You'll need to change the shell settings to match your current Ubuntu terminal. Simple way would be to make your local .bashrc match the one used by Ubuntu (see here for an example of the Ubuntu default .bashrc.) You can either plug the settings in to a .bashrc file for all shells, or use a .bash_profile in your home folder to set Terminal preferences for login shells. This post has more details on how to create these files.

Last, I imagine your Ubuntu terminal sessions aren't on a white screen - Adding in the xterm-color settings will provide colored text, but won't affect the background color. I generally start by making the "Homebrew" Terminal display setting the default in OS X, to get black background + green text, then tweak from there.

Poke around in the other settings you have for yourself on Ubuntu - any default keyboard shortcuts, etc. will be in .profile or .bash_profile, and those can be copied into the same folder on your Mac. If you want to get really picky you can even install Ubuntu Mono (the default Ubuntu terminal font) on your Mac, and use it as the default font for Terminal.