IIS intallation

My iis server member(A)is running slow,therforeI want to build another server(B)but faster And more memory,Then transfer all the web sites, all dynamic/static web pages to the new one(B) with the same computer name, at the end remove the iis server (A) from the domain. Also my iis sever uses mdac 2.5 stack for database. how can I implement this project ??????
Thanks for any suggestion..