A while back your web site said you were looking for hardware manufacturers to provide reasonably priced IPv6-compatible hardware.
I've just tried a Billion Bipac 7800N. Upgraded to the latest firmware (1.06d) it seems to support IPv6 very simply. You just tick the "Enable IPv6" box in the web setup, and it picks up your A&A allocated address range and all just works. I did have to remember to turn off IPv6 tunneling on the A&A web site, but that was it.