Got that Adam, many thanks.
What I have done is basically cleaned my own Pc and seen what it intails and will now price any PC cleans from there.
i used an Anti-static spray with a cotton cloth with cotton buds but would also use a micro-fibre cloth and a compressed air spray. I feel these tools would be ideal for Pc and keyboard cleaning. The spray can also be used for TV's, Hi-Fi's, phones and car interiors!
My Pc now looks gleaming
Thanks for all your help
Regards
Martin