Your system configuration seems, great, thank you for choosing Intel(R) Products. A few notes though,
- You can find a list of supported RAM for your motherboard here: http://www.intel.com/support/motherboards/desktop/dz68db/sb/CS-032375.htm
- There are only 2 x SATA6 ports on the motherboard. This means that one of your hard drives will have to go on a SATA2 port, which will cause it to run slower. If all 3 drives are part of the RAID, the volume will have to work at SATA2 speeds.
- Bluetooth keyboards might not allow you to navigate the BIOS, as the BIOS has no drivers to support them.