Symantec Ghost is designed to provide imaging over a network as well as other bootable solutions.
The WinPE method I documented is entirely stand alone, using a boot manager rather than relying on a function key. Depending on the relative sizes of the partitions you create, you could reimage the entire working partition at regular intervals, just bear in mind that a 200Gb operating system partition is going to need at least 100Gb of image storage, and more likely, up to 150Gb of image storage, as many file types commonly used today (eg JPG, MP3, MPG) are already highly compressed, so are unlikely to be capable of any significant recompression by Ghost or any other imaging utility. I personally found that operating system images made with ImageX were smaller than the equivalent Ghost images, as imagex explicitly excludes swap files and various other "transient" files from the image, since these are recreated at boot time anyway. However, the difference in size gets progressively smaller as the image size increases, as the compression techniques used are pretty similar. Also consider that imaging 200Gb of data is going to take a long time.
What I would urge you to consider, however, is that there are two separate events that can create a need to restore a partition image. The most common is an event such as a virus infection which causes substantial data corruption, or which cannot be removed cleanly. The slightly less common is a total hard disk failure. Clearly having a recovery partition on a failed hard disk makes any chance of recovery microscopic, especially where the failure is due to a head crash rather than just component failure.
Thus for maximal data security and the highest chance of recovery, your image should either be stored externally to your machine, or the image should be backed up from the recovery partition to external storage.