Exchange 2007 backup with backup exec

I have a server running server 08 R2 with exchange server 2007 sp3 and i want to decrease the size of the backup to save some disk space.  I am wondering how i can do this so i can both decrease the size of the backup as well as keep my ability to restore the mail database.  What i am confused about is the selections i need in symantec backup exec 2010.  I am including two snips from the properties of the backup job the first is what the selections look like before the changes i am assuming i need the make the second is the selections after i made some changes.

In the the first graphic i am backing up the folder where the log files on the F: drive, the databases onthe G:, the system state and shadow copy components as well as everything under the Microsoft information store.

In the second all i am getting is the "microsoft information store".  Is this enough to do a restore?  Or do i need the files from F: and G: too?  Thanks experts.
Full-backup-before-changes.PNG
Backup-selections-after-changes.PNG