How about cloning the word, giving it a black fill and moving it (say) 2mm to the right and 3 mm down, then sending it to the back and finally, giving the front one a white fill with a black stroke of (say) 1pt?

Wouldn't that make a drop shadow rather than an extrude effect?

You could use the 3D Extrude and Bevel filter in Illustrator.

You're right Bendy, you'd have to fix the corners :(

I've never seen a simple way to do this in Photoshop (I jumped from CS2 to CS4) but you can do in Illustrator like Jonathan said.

Thanks, people.

Well, my good old CS3 had the 3D "Bevel & Extrude" function in the Filter menu. But it got dropped in CS4.

I am definitely looking for a quick one-shot way to do this. I guess Illustrator is the way to go. :-( What is sad is that it is still just the same old crappy tool, but now I gotta go back and forth to get it right.

I did find an Electric Rain "Swift 3D" plugin that will do this -- and I'm sure it is a vast improvement over the old Adobe 3D Filter. But Swift 3D is $150 and... well, I've got Illustrator... so I guess I just have to regress my method. Oh well.