Really good idea Robo, just one thing. I've looked around local stores yesterday and a vac's in Ireland are rated in Volts ie; 1000v, 1200v, 1400v and up to 1800v was the biggest I've seen so far and all corded vac's, The hand held (portables) are 14v 18v like the cordless drills etc but they only have a battery life of 10-20 minutes rubish really. Does anyone know what size I should look at as I don't know how to convert Volts to HP. Cheers.