[CentOS] Software RAID 10?

Hello...

I have a server with 4 x SCSI drives and I would like to install Centos 
4 (or 5) onto a software RAID 10 array.  Do you know if this is 
possible? I noticed that under the Centos 4.92 beta, RAID 5 is an option 
but for some reason RAID 10 is not listed.

There does appear to be a RAID 10 module....

/lib/modules/2.6.9-42.0.8.ELsmp/kernel/drivers/md/raid10.ko

More info I found here:

http://cgi.cse.unsw.edu.au/~neilb/01093607424

Many thanks for any help on this; I hate to buy hardware raid controller 
if not needed....

Mickey