Installing Memcache For WordPress W3 Total Cache Plugin

Today is a very distracted day. I was busy programming until i lose interest and read up google seo blog. There was this article about google page speed that suddenly makes me feel like speeding up all my website just for some seo benefits. The number one thing i notice about speeding up my website are surrounding caching. Hence, i digged down to my WordPress cache plugin W3 total cache and start exploring him a bit (after 10 months). However i was in a shared environment so the only option other than disk caching would be to install memcache on the server (quite some resources for some speed gain). But it does the trick. My server was using Centos 5.6 with cPanel installed.