I would guess you are overestimating the memory footprint of your applications (unless you are planning on running Eclipse/Firefox/etc.) on the box. USB2.0 wil

I would guess you are overestimating the memory footprint of your applications (unless you are planning on running Eclipse/Firefox/etc.) on the box. USB2.0 will push 480Mb/sec which is probably sufficient for streaming content. My wireless router has 64MB of ram and is capable of running as a NAS device if you plug a USB enclosure into it.