I got the d-link 7-port hub tonight and it'll handle 6 BEs without a problem, though with 7 plugged in cgminer ends up idling one of them at a time.  Between that and a small 4-port I had lying around (with a 2.5A PS) I'm running 10 BEs off of my Raspi for a total draw of 35W measured at the wall by a kill-a-watt.  Time to return the Juiced hub.

@klondie_bar: good point - I should've mentioned that. DX delivery took about 5 weeks for my last order.  By the time it arrived I'd forgotten that I'd ordered a 5mw green laser pointer for $7 and man was I surprised at how well it works and how far away you can see the beam.  No, I'm not shining it any any airplanes (I like not being in jail.)

@pidge: nice setup and extra points for the custom duct work.  ;-)  I wonder if you could use a 5-10A wall wart to replace the underpowered ones that come with most of these hubs.  Sure, yours is much cleaner, but with kids, pets and a clueless in-laws around it would be safer (for them and the equipment) to go with something a bit more boring-looking and less exposed.  What do you think?