Well... I don't know what you DO have so its really hard to recommend things that I think you might not have.

Have you tried Oblivion or Mass Effect? I have played both as many many have. Great games with a bit of combat. Also, The Orange-box with Half Life 1, 2 and a add on can't be ignored.

Gothic, Gothic, and more Gothic.

And then Gothic 2.

Seriously - I didn't come up for air for at least 2 months.

Then could you possibly be more specific about what genre you ARE looking for? When I think Action RPG Mass Effect, The Witcher, and Diablo II are the titles that come immediately to mind. Give us a list of some of the games you did like and maybe we can be of more help.

The Witcher, Buldurs gate, Neverwinter nights, Diablo 2 etc

Heya,

I assume you've already played through Baldur's Gate II many, many times as many different classes. I also assume you've played through the entire Icewind Dale series. And I assume you've played through Planescape Torment. Lastly, I must assume you've played through Fallout 1 and Fallout 2 several times for the multiple different endings and class approaches. If you have not done these, several times, then you sir have not been playing the greatest RPG's and it's time for you to dive into a year's worth of content for day to day "OMG".

Beyond that, Neverwinter Nights 1 & 2 are amazing and have a huge load of content and possibilities.

In another direction, have you played Jedi Apprentice? Amazing game.

Very best,