A horse is a horse of course of course

[Bryntryst]

Check the rules surrounding 'magebred' animals out of the Eberron Campaign Setting. Good rules for amping existing animals in a decent amount of ways (ie, stats, speed, ac, etc).

 

[Andras]

There's the Clockwork Steed in MMIV

 

[brehobit]

If you are going to stay pure fighter, there isn't a lot. The link Thanee supplied is the best.
After that, in Eberron you could consider a magebread warhorse. Lastly, you might be able to get the DM to let you buy an "advanced" horse.

After that, the awaken/leadership option is as good as it gets. I've got a VoP sorc. who has an awakened mule (cleric) via leadership. Darn handy that.

 

[Kae'Yoss]

Check the rules surrounding 'magebred' animals out of the Eberron Campaign Setting.

Eberron mages are disgusting!

 

[Goldmoon]

The campaign is in Eberron, so Ill give that a try first. Thanks for all the help everyone!

 

[Klaus]

Since it's in Eberron, try to get on the good graces of House Cannith and get a discount on an Effigy Heavy Warhorse (from Complete Arcane) or a Brass Steed (horse-golem from Heroes of Battle).

 

[gardengoth]

If time and money aren't an issue, have a look at the training section of the Warbeast template in MMII.

 

[Endur]

You want the Legendary Horse from Masters of the Wild pages 40-42.

18 hit dice, str 28, speed 80'. Size L.

Failing that, Masters of the Wild also has a Dire horse p.38.

8 hit dice, str 22, speed 60'. size L.

 

[brehobit]

If time and money aren't an issue, have a look at the training section of the Warbeast template in MMII.

Yeah,
but you can't apply that to a warhorse....

Mark