If you want consider doing it yourself, you could start by reading Paul Robichaux's Exchange 2007 book. -- Ed Crowley MVP - Exchange "Protecting the world from PSTs and brick backups!" "Ricky" wrote in message news:eERtmiPEIHA.4880@TK2MSFTNGP03.phx.gbl... > Hi > > I want to migrate from Windows / Exchange 2003 32bits to Windows 2003 64 > bits / Exchange 2007 64 bits but I don't have any experience doing this > type of operations so I really need your help. > > 1) What type of arquitecture (load balance? ; other?) should I implement > with an universe of 2000 users where their mailboxes are going to be keep > in a storage > > 2) What processor and memory to buy (server)? > > 3) Raid 5 is the best to this case? If so should it be with just 3 disks > or with more disks (ie 6 with less capacity) so the write/read is faster? > > []'s > Ricyk >