Ubuntu video driver issue

[Dom Latter]

Got me a new wide-screen 1680x1050 display hooked up to my 
dismal old laptop.  To get it to run at full res I had to install a 
new driver thus:

  sudo apt-get install xserver-xorg-video-intel

Unfortunately when I try to run the laptop on its own, the 
display is blank (when running X; boot screen, consoles etc
are all fine).  I was able to get the laptop on the net and run:

  sudo apt-get install xserver-xorg-video-i810

from a console to restore the status quo, and now it's back 
home again I've reverted to the "intel" driver to enjoy wide-screen
grooviness.

Is there a way to have both drivers available, and wire the choice
into GRUB, so that when it boots I can choose stand-alone config,
or external display config?