A client of ours want to build something similar to EMT apply yourself (http://www.hobsons.com/europe/produc...applyyourself/) and has requested us for the type of hardware he would be needing. Therefore, we want to know your expert opinion on what type of servers/hardware would we be needing for this purpose. Here are a few details that might give a clearer picture:

500-1000 users on normal days.

100,000 concurrent users on peak days (around 2 months in a year)

Will be using Microsoft Dynamic CRM.

Database: MySQL.

Please share your views based on experience as well as knowledge.