EC2 Instance Monitoring

Hi Everyone!

I was wondering what would be the best way to monitor multiple EC2 instances, I saw Amazon offers CloudWatch but it costs money! Is there any alternative?

I've heard that Cacti is particularly good,

Thanks!

From serverfault $pageUsers[$entry.posts[0].author].name

• You can monitor them the same way you'd monitor physical servers.

  From Billy ONeal

• If you're in for something free, use Cloudkick! Requires almost no effort to do anything. It's basic, but will get the job done.

  From Till