Not sure what the policy is here regarding Ebay, but there are a couple of nice 21"'s up for auction right now:
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=1363150544
Being sold by Klatuu, a 21" collector from LA. Nice guy, too.
And this blondie:
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=2115610919
Don't know the seller, but it's a nice set!