Windows Server 2008 R2 WSB Scheduling

Just wondering if it's possible with the built in Windows Server Backup(WSB) or if I'm going to have to go with a third party Backup solution.

Here's what we want to achieve:

We have a couple of external 2TB Hard Drives that we want to backup to.  We want to backup to one that is plugged straight into the Server and one that is Plugged into another computer on the network in a different location.  With WSB I can schedule either or but I can't schedule both.

I was wondering if there was a way to set scheduling to do a backup every other night.  And have 2 Backup Schedules running to backup the Server on the opposite nights from the first one.  Can it be accomplished?  If not what Third Party Software do you guys suggest we use.  I've looked into BackupAssist.  I have talked to them and they say that they can accomplish this.  Just looking for insight from you guys if the WSB can't do what we're wanting.

Thanks in advance.