So I have to design a low-power data queuing system. I've never done a
low power design, so I though I'd come to this newsgroup to solicit a
few ideas.

I'm going to be continuously receiving data at 55KBps. I have to store
a whole days worth of data before I offload the data to another device
which ends up being ~4.8GB. The offload rate is going to be ~6.5MBps.

My initial thinking is to build Cool-Runner or a Spartan-3E to control
an SD-Card. But it's totally open, so I could use Compact Flash, USB
flash key, or even some SDRAM. So with the main constraints being low-
power and ease of implementation, what would you guys suggest.

Thanks in advance.