I was talking to my local dealer and they told me that the 7700 was going to be being discontinued since the 8900 is out so you may be able to find a good deal on one. They also told me that there is an 8200 out but that they won't carry it until they can no longer get the 7700 because it is in between the 6600 and the 7700 as far as features.
I currently have the 6600 and the 11000 and was thinking about trading my 6600 for the 8900 but my dealer is offering me such a great deal that I am trading my 11000 (that I bought used) for a 12000 and keeping my 6600, which I LOVE