Yet another "Recommend an MMORPG" thread

Hey guys! I'm taking a break from WoW and Guild Wars and looking for a good F2P MMORPG that i can play for quite some time. Here are the things I'm looking for:

1. Depth in class developed.
2.(At least some) Emphasis on team work (good old Tank/Healer/DPS) maybe some dungeons or party missions
3. Decent community (Don't wanna play an MMO single player)
4. Not too dependent on Cash Shop. I'm not planning on spending a dime :D

atm, I'm considering these F2P MMORPGs:

World of Kung Fu (sounds promising as far as I can gather)
Rappelz
Last Chaos
Rohan Online

I live in South East Asia and the download size kinda matters; but I'll try downloading if its worth it!
If you have any recommendations that would be really helpful.

Pls. for one reason or another don't suggest these games: Perfect World; Rune of Magic; SUN Online (won't run outside the US), Atlantica online.

Sorry for the wall of text!