Help with first ROM flash please

Before doing the factory wipe prior to flashing a ROM should I move all my user apps to the system? I guess I should leave Titanium on the sd so my backup will not get erased yes? Or does the backup automatically get saved to sd? I would appreciate anyone willing to shed some light on this for me. This will be my first ROM flash. Thanks in advance.

Sent from my newly liberated Droid2