Desdichado
Hero
Ah, so you mean just a lower magic, lower power, sword & sorcery system.
The Conan game by Mongoose might be a good pick. Very similar to D&D 3.5, but toned down in a lot of ways, and without the flyaway power levels at the top. The exact same is true for Black Company and Thieves' World, both by Green Ronin. Grim Tales by Bad Axe Games does the same thing by adapting d20 Modern to fantasy.
The advantage of these d20 derivatives is that they're more or less compatible with all the other material you've already got, which is a hard thing to overestimate. You need monsters, spells, classes, adventures, or whatever? Well, with a d20 variant you've got a bazillion in print. With Warhammer (which is a great system, by the way; I recommend it as a fun game) you've got the stuff that they've published, and it's not a lot, and when it's done, there's nothing else.
The Conan game by Mongoose might be a good pick. Very similar to D&D 3.5, but toned down in a lot of ways, and without the flyaway power levels at the top. The exact same is true for Black Company and Thieves' World, both by Green Ronin. Grim Tales by Bad Axe Games does the same thing by adapting d20 Modern to fantasy.
The advantage of these d20 derivatives is that they're more or less compatible with all the other material you've already got, which is a hard thing to overestimate. You need monsters, spells, classes, adventures, or whatever? Well, with a d20 variant you've got a bazillion in print. With Warhammer (which is a great system, by the way; I recommend it as a fun game) you've got the stuff that they've published, and it's not a lot, and when it's done, there's nothing else.