Can I replace my optical drive with a hard drive drive? I have a Asus N61J laptop, I have seen some sites on the web that advertise this procedure for Apple notebooks. I would prefer not to have an external hard drive.
The thing with Apple notebooks is that it's easy to produce one enclosure to fit several (or almost all) models, because it should seal the slot perfectly.
However, there is an enclosure for your model at newmodeUS, which comes at $44.75.
One additional info though:
I wanted to do something similar and found this very well researched thread on a forum: http://forum.notebookreview.com/hardware-components-aftermarket-upgrades/388625-diy-adding-ssd-hdd-storage-using-optical-bay-caddy.html
There are just too many tips there to copy-paste here.
Update: Found the SU blog entry as well: http://blog.superuser.com/2011/05/04/best-of-both-worlds-putting-an-ssd-in-your-optical-bay/