Need a solution to block all Porn Content - Home Network

[rsatbf]

Guys, I want to prevent accidental porn exposure to kids at home. I started this quest, but didnt really find a solution. I have now progressed a bit. Am using OpenDNS FamilyShield DNS IPs for a start. It block direct porn access. However, it does not block objectionable content from youtube and google searches/images and god knows what else. I was looking for some kind of enterprise class filtering available to home users either free or at a nominal fee.My thoughts are to use a Squid Proxy and Filter on my NAS. However I dont really want to keep a device on all the time for this.I looked up some free proxy servers that I can use, however didnt find any real solution. I hear Google offers free proxy access, but this is more to circumvent blocked access than to actually enforce it. I guess it can be used for enforcement too, but thought would get some ideas here.Situation is that we have multiple clients from which the Net can be accessed - WII, PS3, 2 iPads, 1 Samsung Tab, 2 iPhones, 3 laptops, 1 desktop, 1 smart tv. Hence wanted a graceful and easy solution at source (router + Hosted Proxy if possible)