Just off the top of my head, in republic mission 2 (the one on sarapin) there's a couple of holos- one right near your starting position I believe.
I'm pretty sure that in most of the B&D scenarios there's a holocron or two, to be used for normal purposes. (not like the leia campaign ones)
Hope this helps.
Stupid Safety Warnings:
Caution! You could be killed if you collide with a large truck while driving this small car!
Warning! This knife has a sharp edge- do not press against your throat!
Danger! Matches can create fire that may burn you!
And, last but not least:
Caution! Do not point this gun at someone and pull the trigger!