I would look at a Rido saddle if you're willing to try something different. I probably never would have tried it if the glow model didn't match my frame perfectly, but it's cheapish so I tried it. I've ridden on it for almost three years now and feel like a genious for buying it.
It has the same hammock effect as a leather saddle, and is waterproof. I can't comment on Brooks specifically, but I prefer the Rido to my leather Ideale.
I love the look of a Brooks saddle though, and you will luck out to find a Rido color that doesn't look goofy on your bike.