The Scottish GENES blog has now ceased publication - for continuing Scottish news please refer to its sister blog, British GENES, at http://britishgenes.blogspot.com. The Scottish GENES posts will remain online as an archive of Scottish genealogical news from 2007-2011. Alba - agus Scottish GENES - gu bràth!
It's completely free, and really stands up to some of the family tree programmes that you can buy, it's very user friendly. Just be aware that it installs its search page as the home page on Internet Explorer, so you'll need to reset your home page. But it is a very nifty bit of work.