That's what I'd start with... Preferably non-metallic, but if that's all you've got, then just shut the system down, flip the switch on the back (or pull the power cord), wait a couple of minutes for any residual charge to dissipate just to be on the safe side, and then start fishing around.
Anyone have any idea how difficult it would be to retrieve my daughters xd card from a reader in ACER PC. She put her Olympus XD card into the wrong slot and it just fell in. Don't really want to tip the unit on its head. Any advice??