I'm certainly down for a copy of BRP and Interplanetary, and probably one or more of the other sourcebooks too - will check them out as they come.
Jason - you mentioned spirit combat rules *drool* *drool*... any chance of a hint or two? Essentially the Ghostly Combat on p339 of BRP Zero, or something different?
Inquiring minds (in search of corporeal embodiment) wish to know!
Cheers,
Sarah