FreeBSD 7.0 - should I be using gvinum or gmirror/gstripe?

[Shelby Cain]

I'm toying with the idea of setting up a raid 1+0 array using 4 500GB 
sata drives.  However, I can't seem to find any definitive answer as to 
whether I should be using gvinum or gmirror+gstripe to accomplish that 
goal.  Does anyone have any links to resources (or just personal 
opinion) that provides guidelines for choosing between the two methods?

Regards,

Shelby Cain