If I like the m903 enough I may sell my HA5000 as the m903 is supposed to be a very nice all in one. Glad your new DAC and is sounding good.
I'll probably find a Grace m903 thread to post my impressions in.
Also want to note that Moon Audio has been great since we got the Wadia issue cleared up. I was given a great price and Drew even burned in the m903 for a day to check for any issues. Thanks Drew.