Windows XP SP2 Partition 1 - 5gb - Windows XP SP2, updates, drivers, etc. Partition 2 - ~remainder of a 320gb hard drive - everything else. Apps, games, media, etc. 1) is 5gb enough space for the OS itself and any drivers? Ever forsee in the future needing more than 5gb for just the OS and drivers? 2) is it a bad idea to keep games on a separate partition as the OS for performance reasons? i.e. any performance hit for keeping games on a separate partition? My goal in this, since I reformat often, is to make the whole process as painless as possible. Rather than installing the OS, drivers and every freaking program I use, I'd rather just install the OS and drivers and be done in a fraction of the time.