Securely Deleting DIRs\Files On Hard Drive (Leaving OS Intact)....

I am going to be giving away and donating a couple of old PC's.
Before I do, I would like to DEFINITELY remove directories and their files containing financial, etc. information so that there is no chance of them being 'undeleted' or recovered.

I would also like to leave the OS and some of the programs & software that came with the PC intact for the new user of the PC.

I didn't see anything in the 'Drive Cleaner' section that seemed to be able to do this and I have used 'wipefile' before but I was hoping to find something that would work at the dir and subdir level instead of at the file level.

Any help\suggestions\URL's will be most appreciated!!!!

Thanks in advance!!!!

 

????? I thought that someone would have done this already........

Hmmmmm....................

Guess I'll have to try some trial and error..........