Nice. I too have an interest in "unconventional computing" (analog/quantum/biological etc.) since i think that we are reaching the limits of conventional Von Neumann architectures and discrete mathematics in terms of efficiency, power consumption etc. Nature is analog and continuous with efficient energy consumption and while we have come very far by imposing discrete and boolean algebra on it, it is inherently only an approximation. Note also that at the quantum level nature is both continuous and discrete i.e. wave/particle duality and we again have a need to model continuous wave-like characteristics.

A few books that i am currently looking at which you might also find useful;

1) Principles of Neurobiology by Liqun Luo - Uses an integrated approach to neuroscience.

2) Handbook Of Unconventional Computing in 2-vols (Vol1-Theory, Vol2- Implementations) - A comprehensive resource.