Having one hell of a time finding a good mmo that isn't a hack-n-slash or midievil with fairies and swords and whatnot kind of mess.

Basicly trying to find something a little more modern in genre, but not too overly graphicly-demanding. To be specific, my computer can at best handle about a Geforce 2 level of graphics.

I already know of a number of games as it is, some which are interesting and some which just plain suck, so I'm looking for others. Eve Online, Anarchy Online, Planetside, and Space Cowboy are ones I already know about and/or tried already.

Anyone got suggestions?