First, there is DeathSpank. A brilliant satire of the "kill monsters, get stuff" genre. And like all good satire, it meets or exceeds the quality of the subject. Only $15 on Steam, (steampowered.com) also. I could take pages to review it- check it out yourself online. Warning: playing this game will result in much, much laughter.
And, my daughter talked me into trying out Lord of the Rings online. Amazing graphics- the folks at Turbine put a TON of loving work into making Middle Earth come to life. But it doesn't bog down even my mediocre computer! Feels more like a simulation than a "game". And it's cool to know there are weapons in the game now that say "Crafted by Osti" (my Dwarf champion).