Hi Roger,
Welcome to the forum. :D
Your link has been caught by our spam trap, it will stop when you have a few more posts, here it is:
http://premiermachinetools.netfirms.com/tooling.htm
As Brian said you don't need a very powerful fan, the one I used was an old rack cooling fan, it just moves the air gently, you don't want a gale blowing the drawings of the bench!
That is a gloat of major proportions, well done on picking up all that kit for £50, you are well and truly on The Slope TM just as I am. :shock: :roll: