join command?

I have a 4-sided extrusion that will fit perfectly into an existing hole. Is there a keyboard shortcut that will connect the 2 automatically?

http://img847.imageshack.us/img847/7340/joinb.jpg

Enable the Loop Tools addon and use the bridge option. They have to be the same object so if they are not, join the two objects first with Ctrl+J
Alternatively use the snap option (magnet icon on 3dview header) and snap end end to the other. Then remove doubles with W / remove doubles

Wow! That was fast. Thanks, Richard.

I’m using 2.49 for this project. I guess I’ll do it the old fashioned way.

Thanks again!

edit = snap option technique works BEAUTIFULLY!!!