[CentOS] preferred software RAID 10?

Hi all

I'm looking at setting up software RAID 10, using CentOS 5.1 x64 - what is the best way todo this?

I'm reading some sources on the internet, and get a lot of different "suggestions"

1 suggestion says to boot up with a Live CD like Knoppix or SystemRescueCD, setup the RAID 10 partitions, and then install Linux from there. 2. Another is to setup a small RAID 1 on the first 2 HDD's, install Linux, bootup, and then setup the rest as RAID 10

The others didn't really make sense to me, so how do I actually do this?

And then, how do I setup the partitioning? Do I setup /boot on a separate RAID "partition"? If so, what happens if I want to replace the 1st 2 HDD's with bigger ones?