Either wipe the drive, very, very good, or remove and destroy the drives. It actually takes some work either way. Wipe the drives if you have a taker who can use them. Destroy the drives (I drill holes and use a sledgehammer) if you're recycling the rest. You want a recycle program as there are things in those boards and monitors that shouldn't be in a landfill. Local office supply stores can usually guide you on a recycle program as can the web. HP and Dell are both big in this, as I recall.
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AndyZ CRCM
My opinions are not necessarily my employers.
R+R-R=R+R
Rules and Regs minus Relationships equals Resentment and Rebellion. John Maxwell