you can try running 'startx' at the prompt, but you probably need to set up you GUI first. If you run startx, and it doesn't do anything, hit <ctrl><alt><backspace> to exit it. Then run:
This will bring up a menu for configuring your card and video. Afterwards, try startx again.
Also, dselect is a way you can install packages, so to do more than the basics, you'll probably want to play with that a little too.