What a pool of talent to be able to dip into! I am grateful for your sharing of your knowledge. I am going to go with the Kwanbis suggestion as it is 1) used by government agencies which means it is probably pretty good, 2) easy and 3) free. I have two drives to clean so I will pull out my two WXP 250 GB drives, install the 120 GB and 160GB, run DBAN against them both and then run Gibson's SpinRite to be sure I am not giving this guy a piece of sticky brown stuff.
Thanks, again, you guys for your help. I am truly appreciative.
PS - I am going to check out HDCleaner, too, just to see what it does and for possible future use.