I would like to strongly recommend Alok as a great guide,we did Annapurana base camp trekking from 29may to 7June 2006 which was really wonderful trip because of Alok.Interestingly we got his email from trekinofo.com and he organised everything for our requirement during staying in Nepal.He is a really good guide, who knows a lot about nepal, the villages on the trek and the local people's their culture,tradition,religions,history and politcs etc .he will give you a fair price and he is very very flexible about your itinerary,it would be very easy to work with him.He is very good company, reliable, trustworthy.so do not hesitate to hire him.
his email address is " aloksun4u@hotmail.com"
your David