Caroline from Trailblazer sent me a review copy of the latest edition of their Everest trekking guide. (Published March, 2009)
I read it on high while tenting on Mount Lady MacDonald.
Amazon – Trekking in the Everest Region, 5th
For any hiker wanting to plan a Chomolungma adventure, there is no better resource.
Expedition, Teahouse or Independent?
Route options depending on when you go. And how long you can stay in Nepal.
Terrific maps.
I have no complaints at all. This is an excellent guide.
The author Jamie McGuinness is expert, one of the most experienced trek leaders in the country. Based in Kathmandu, Nepal, he manages a trekking and climbing company. And has summitted Everest three times.
The main alternative, Trekking in Nepal by Stephen Bezruchka, has not been updated since 1997.
My next trip to Nepal will be to the Everest region. I’ll teahouse trek independently, carrying a very light pack, deciding on my exact route once there.
And I’ll be using the Trailblazer Guide.
besthike.com 
Make sure you let me know Rick. Love to do this part of the world as well
October is the best month, George.
But reading the guidebook it sounds like there are good adventures at almost any time of the year.