That Gayax game on your list is pretty cool. Probably the closest a free game could get to being like World of Warcraft.
Add these games to your list.
Jianghu OL
www.jianghuol.com
FungWo Online
http://fw.object.com.cn
Alias Story Online
www.aliasstory.com (Great looking game!)
King of Kings 2(P2P)
http://kok2.lager.com.tw
She Me She Me Dao Mao Xian(Long name)
www.iuuiuu.com
Orka Online
www.orka.co.kr
Graphics Arena Online(Huh?? LOL!)
www.txjh.com
XJZ Online(Free TS like game)
www.xjz.com.cn