Ok so I got all the parts needed to make this work for Christmas and I'm just testing it now.
I installed NOOBS on my Pi and installed Raspbian and booted it all up. Then I installed DreamPi on the SD card using the instructions on Kazade's site. When I set everything up and booted DreamPi everything appeared to load correctly but two processes failed - "not running dhcpcd beacause etc/network/interfaces...failed!" and "defines some interfaces that will use a DHCP client...failed!".
I then asked me to log in which I did with the default Pi username. And I'm left with -
pi@dreampi $
What do I do now?! I've set up my ISP using Dream Key 3 but I didn't know what to put as my username/passowrd so I left it as 'sega' for both.