It's summer, I feel its time for some mmos. Do you guys know any that fit this criteria?

1. Free (with minimal bullshit such as "pay for these items" ) with enough free content to last me awhile
2. Little space on computer (hopefully just 1 gig or less)
3. Decent graphics (I'm not a fan of those anime-type mmos. other than that I'm not looking for too much).
4. Hopefully with many story-driven quests, and minimal grinding. Hate grinding.

I currently play Lord of the Rings Online, which fits most of this criteria (except the computer space one... this game is huge!) and I've tried Pirates of the Caribbean Online (story driven, little space, although more juvenile in nature, still was fun for awhile.. until free content ran out).

Any game similar to those I listed would be great. Thanks.

Runescape, though it has a lot of grinding at higher levels.