I also suggest that you look after this internal USB hub
http://www.overclockersclub.com/reviews/nzxt_iu01_internal_usb_expansion/I'm using this in my A2000 with my Deneb to power all my USB devices from the PSU instead of draining power through the zorro port and the Deneb lines. It protects the Deneb and gives enough juice for any power hungry devices such as external hard drive or CD. My front USB bay is connected on this.
