I use the entire Microsoft stack for BI, and I am certain that migrating to the 64-bit versions added power to my capabilities. Moreover, the 64-bit versions of "everything Microsoft" are the future, so why not get on with it. The transition from 32-bit to 64-bit was more painful than I expected, so be sure that you do not trivialize the conversion. My other comment is that the 64-bit versions of the software make RAM much more important than with the 32-bit stack. My advice is to switch now to the 64-bit versions of the Microsoft stack and to upgrade to a minimum of 6 mb RAM (better yet, or as much as you can afford). Hope this helps...