How much to replace a new laser on the Denon 3910?

Call Denon America and see(pray) if they have them in stock. I have a highly modified Marantz and had the same concerns. I called Marantz America and found that they still had them in stock for around $90. I bought one even though I don't need one right now. I figured for $90, it's peace of mind to have one around.

I don't know that I could install it myself, but at least I know that I have the necessary part. I can always find a tech if I can't install it.

Try here:
http://www.studiosoundelectronics.com/cdlasers.htm
or:
http://www.partstore.com/SearchResults.aspx?q=laser+pickup&mcfilt=3&cfilt=10%2C4%2C11%2C851%2C5%2C711%2C17%2C714%2C18%2C9%2C12%2C13%2C644

All the best,
Nonoise

John Tucker, Mr Exemplar himself,
is replacing my shot laser with a brand new after market laser. Denon does not make them anymore, and he said that 30% of the new ones do not work properly. He's modifying some caps and some other things for a song. Bottom line? $410, and he said it will slay (my term) my present baby. Soon my new speakers will be here, so I'll have time to make an objective evaluation, since I will be using my original speakers...thanks for the feedback...

Buying a used working machine is your best option. All you have to do is swap the entire transport mechanism from one machine to another. Very simple to do if you have basic DIY skills. Replacing a laser on an existing transport is more difficult and may require calibration of the new laser.