I am currently using 2 Linode 512 MB servers for a simple free application. One of my Linode got hacked recently. But for another paid app I am exploring other options like PEER1 for managed Security such as IDS and Managed Firewall / Load balancer. It would cost significantly more than ($600 - $1200) Still not sure whether I should be managing my own security using tools such as OSSEC/Snort or outsource it.

What are the solutions everybody is using for Load Balancing and Security.