So far you can restore your system from the recovery DVDs that you made and as well as the hidden partition on the hard drive.
Next, I would create a Windows 7 System Repair Disc
; see here
and then create a windows 7 system image
and store it on an external hard drive; see how-to
I would periodically create additional full system images and more regularly, backup important files, photos, music, etc., also to an external drive.
I hope this helps.