Simpler WAN fail-over setup?

Yes, I found this post: http://forum.mikrotik.com/t/best-method-to-load-balance-2-internet-line/37337/15 Is it the one?

I think the easiest for me would be via netwatch, I spent about 2 hours trying to set it up by using, but it seemed that my down/up scripts didn’t work for some reason…

In Chupaka’s “lite” version, I don’t understand what “routing-mark”, “scope” and “target-scope” mean, and what they do. Please clarify.

/ip route
add dst-address=213.180.204.3/32 gateway=192.168.1.1 scope=10 target-scope=10
add dst-address=93.158.134.3/32 gateway=192.168.2.1 scope=10 target-scope=10
add gateway=213.180.204.3 routing-mark=ISP1 scope=30 target-scope=30 check-gateway=ping
add gateway=93.158.134.3 routing-mark=ISP2 scope=30 target-scope=30 check-gateway=ping
add distance=10 gateway=93.158.134.3 routing-mark=ISP1 scope=30 target-scope=30 check-gateway=ping
add distance=10 gateway=213.180.204.3 routing-mark=ISP2 scope=30 target-scope=30 check-gateway=ping

Thank You!