Baking with Whole Grain Flours

[GodsCdnGurl]

Hello! I'm an avid baker, and very health conscious. I'm do some experimenting now with different flours. But I'm wondering if anyone can give me advice or tips on how to bake successfully, using whole grain flours. The taste is great, but the texture is somewhat lacking and I find that baking times also very from the original recipes.

Is there a website, or recipe book that deals with whole grains instead of all-purpose flour? I often make muffins, quickbreads, breads and rolls and cookies and cakes.... but I'm switching over to whole wheat, rye and spelt flours, as well as using sucanat in most of my recipes. It's just that most of these recipes don't cook the same with the whole grain flours. I enjoy experimenting, but I don't like to waste things and finances is a concern. Since it's already more costly to buy whole grain (especially organic) flours and sucanat.... I don't want to make things that will have to be thrown in the trash.

Any advice, tips, helps, resources would be greatly appreciated! Thank you, in advance.