If you have a good computer I definitely recommend trying AoC. I found it a lot of fun. There is, however, a drop in quality after you leave Tortage. It's not enough to be gamebreaking but you can feel it. You can give the trial a shot. I have no doubt you'll enjoy the first 20 or so levels especially if you can crank up the graphics.

Edit: Here's the link: http://www.ageofconan.com/trial/

Warning: Huge download