If you have a need to connect some SATA disks to your computer externally, you might want to consider using a drive enclosure. The Sans Digital MobileSTOR MS2UT 2 bay drive enclosure also provides a RAID solution if you want to protect the data on your drives.
What do you do if your PC cannot connect to your network or server during a PC Restore from Windows Home Server? If you have another PC on the network and a USB enclosure you can remove the drive and Restore from outside the PC.