Yes, I think I know what you mean. Well, there are quite a few similar games to The Settlers around. It just depends what part it is that appeals to you; the RTS (combat) part or the citybuilding part.
A rather a nice citybuilder with some fighting RTS elements if you so choose, is Ceasar IV.
If you like settling new colonies and claiming new areas for your empire and making them work financially and from an administrative and military POV, then the Anno games are nice, such as Anno 1503 or Anno 1701.
If you like RTS proper, see the RTS thread. Warcraft 3 is a nice one to try out.
Have you ever tried turn-based strategy games like Heroes of Might and Magic? HOMM 5 is fun an involves quite a bit of citybuilding.
EDIT: I just re-read yout opening post, and saw that you prefer less fighting and combat. Well, if you like building up a city, then Ceasar IV might appeal to you, though it doesn't really have a story.
The Anno games have a bunch of little scenarios, each rather different, but as far as I remember not much of an epic campaign.
I have a feeling I'd forgotten to mention a game or two that you might like - so I'll keep searching the back of my mind, and give you a heads-up if it comes to me.
