I started modeling a house that I want to use in a game. I really like the workflow of nodes if it comes to materials. So I decided to use the cycles renderer in 'material view' for modeling, texturing and baking. I created some normal and spec maps but did not see the effect in 'material view' as if I use the BI renderer. Ok that makes sense somehow.. Cycles must be calculating the effects based on rays and rays are only traced in 'render view'?! Do I have to change all my node based materials and switch to BI materials now to see my normalmaps applied in realtime? I still would like to use Cycles for baking.. so I still need the node based materials. Can I set up a material for every renderer and switch between them?
to be organized , save the models in one blend file with no material , in a separate blend file you link the models in and set up their materials. this will guarantee no material mixup happens and your blend file project will be cleaner.
you could also make a separate scene for each renderer (e.g a cycles scene and internal scene , a bake scene)