What about RF Online? There is a pretty good Free Server out there called RF equillibrium,and the population is pretty good too.
You can play either as a Magic Driven, Familar Summoning Cora (Elf); a Cyborg Fighter Race who gave up their Humanity, and the Tinker Race the Bellato who ride around on Freaking Mechs.
Cora (Bad Pic,most of the pics out there are Boob Shots; They Specialise in Summons)
Accrecia (Accrecian have a Specialized class that can use Launchers,takes a little while to set up,but hurt like hell)
Bellato (Usually the underdog race, MAUs, or Massively Armored Units, do Massive Damage,have tons of life but can only be repaired at home base,if they explode,their gone.You have to buy a new one,and thats expensive.)
-- Fri Aug 21, 2009 8:43 am --
It's VERY PVP driven, like every 8 hours there is a chip war where the 3 Races clash in a battle of epic proportions. When I lived in the Philippines there and the population on the server (run by Codemasters) was around 15k it wasnt a rarity that almost 80% of the server showed up during the chip wars.It was quite a sight seeing 1000 Black MAUs barreling down a hillside mowing down one enemy after another. Fun times.