I was unable to find free versions of either of these, for Snow Leopard, when I looked a year ago. At that time, Lion was utterly unusable (not sure if it's any

I was unable to find free versions of either of these, for Snow Leopard, when I looked a year ago. At that time, Lion was utterly unusable (not sure if it's any better), so I just gave up and got a Linux VM for that laptop.