I am not sure if this is against forum rules, so feel free to delete this post Outlaw. I figure it might benefit some people who want to upgrade from the 990's remote.

I have bought 6 mx-700's through Ebay. I will personally vouch for this seller, dougtheaterman, as I have bought 5 of my 6 mx-700's from him. The remotes come with a two year replacement plan and 2 day shipping. Unfortunately he has raised his shipping price by $10 so its now $180 shipped. As of now he has 28 available in this batch.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=61323&item=5773800394&rd=1&ssPageName=WDVW

Looking to save some money? This seller that I have never used, but looks reputable based on his overwhelming positive feedback is selling them for $165 shipped.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=61323&item=5774300682&rd=1

EDIT: Just to clarify, all of these remotes are brand new.