Preparation: it's easier to write and edit in Word than with pen and paper. It's also easier to read afterwards. But maps etc. are still hand-done.
I have blank templates for character sheets and experience-point recording that people can (and often do) use.
In-game: the computer provides background music (Internet Radio Is Your Friend) and sometimes has a thematic picture on screen. We also often plug in and print out the treasury list during the division process, to organize it and make it readable. And if a player is absent sometimes someone will send him-her a text message if something dramatic happens.
Post-game: game updates and logs are online. Stats, logs, notes, etc. are all kept electronically. And I get ideas etc. from places like this.
Otherwise, that's it. No electronic dice rollers, no online play or virtual tabletops, no laptops at the table.
About the only technology I could see myself leaping to adopt if it was done well enough (and didn't cost *too* many limbs to buy) would be something that would replace the minis with little custom-designable 3-D opaque holograms projected onto the still-low-tech chalkboard in my dining room. That way, the players could design their mini to look exactly how they want their character to look, and I could get rid of a few thousand minis and free up lots and lots of shelf space.
Lan-"oh, no - it's an illusion of an illusion"-efan