[CentOS] CentOS 6, Raid 1, and LVM

I'm in the process of rebuilding one of my machines and I've been using Raid 1 with LVM on a CentOS 5 OS. I'm trying to get my ducks in a row to move to CentOS 6. However, I can't seem to locate and on the instructions/tutorials that show how to duplicate my Raid 1 LVM environment running

Re: [CentOS] CentOS 6, Raid 1, and LVM

to duplicate my Raid 1 LVM environment running CentOS 6. I saw the 'Partionable Raid 1 on CentOS 5 and 6', but it stopped before the LVM was introduced. Can I use those instructions, but add the LVM during the graphic installation? Is it true about some of the warning I've been reading about issues