Multiple Backups...?

When using Windows Vista's built-in Backup and Restore Center, is it possible

to create multiple backup "scenarios"?

Meaning, I want to backup different scenarios throughout each and every

week: sometimes I want to backup the entire system I want another scenario

to back up just one folder and yet another scenario to back up a set of

folders that I use quite regularly.

Is it possible to have multiple backup scenarios in place with this built-in

backup program?

In looking over the options (or the lack thereof), I'm guessing probably not.

If not, would anyone care to recommend a free backup utility that would have

this capability? I simply do not have the funds at present to be able to pay

for anything above about $20.