My lawn has a lot of moss in it so I thought it would be a good idea to have
a go at raking it out. However, I had forgotten what hard work it is with a
grass rake! I was sweating cobs tonight and only did a small part of the
lawn - and then the heavens opened and rescued me :-)

I was wondering if an implement such as the one here

http://www.gardenandleisure.com/products/wsands15.html

would do the trick? Has anyone used something like this? How effective are
they - and more to the point how much less effort are they than a hand rake?