I've just put together a nice clean, fresh install of Windows 7 x64, and my two primary harddisks are building a software RAID1 array in the background while I type this.

But I want to move over about 90GB of files onto these harddrives, and install a bunch of applications, and Service Pack 1. I know my computer is running more slowly while the RAID array builds, but is there any danger if I do these tasks before it's complete?
Thanks for any advice.