Manage several Audio cards between different apps

Hello everyone,

I have been looking a lot on how to over come this problem;
I have two audio cards on my computer, one integrated into the motherboard and another one in my Plantronics DSP-500 head-set. I would like to be able to select which application, should use which card. For example, I would like my browser and Windows media player to use the Sound card 1 and would like all my games to use the sound card 2(my headphones).
Windows Vista doesn't offer much support for that, pretty lame btw. Would anyone know how I could manage this?

Thanks for your support.