I was trying to get my cable rods thru a floor void today and was not having much success. The client on bringing me a nice cup of tea said I bet you wished you had a camera so you can look in those awkward places. That's it!! I went to the van and got my compact digital camera and used it to great effect.I was able to see the obstructions and managed to work round them to get my cable thru. A good tip to anyone who's not thought of it already. :Y