They're not cheap, but CoolGear makes some bullet proof usb hubs.  I use this one for my stick miners (I run 4 nanofury sticks, soon to be replaced with 4 Compacs): http://www.coolgear.com/product/metal-7-port-usb-2-0-hub-w-din-rail-mounting-kit-japan-nec-chip

I also have one of the usb fans mentioned previously.  Once my Compacs show up this stick set up should out perform one of my old U3 miners (which are just sitting on my desk gathering dust now).