Hi
My dad has bought the following for my son.
Raspberry Pi 2 with NOOBS Os - he also has bought him the Wifi dongle.
think it comes with an 8GB SD card also?
So, I also need - USB Mouse/Keyboard - and an HDMI monitor? And a power supply (which one?) and maybe a book (suggestions).
Anything else?
Thanks
Phil
Keyboard and mouse - yes.
You can use a HDMI cable to connect the Pi to a display, you can also use a HDMI to DVI cable.
If you wish to use a VGA connection, there is an adaptor available. PI-VIEW HDMI to VGA Adapter Cable for Raspberry Pi Computer Board
There is also an A/V connector (The headphone like socket) that can output composite video. This is usually shown as a yellow phono connector on TV's, though use of the HDMI connector is typically recommended, especially when starting out.
You will need a 5v Micro-USB power supply. Minimum recommended current on the PI 2 is 1.8A, though I personally choose 2A+. I have used a (Nokia) smartphone charger for years without any issues.
Book wise - That's largely down to personal preference. There are plenty of good web resources to get started with. 
Glad to help.
Element14 is a great place to ask questions, and seek inspiration. We have a dedicated section at http://www.element14.com/community/community/raspberry-pi with some excellent blog posts.
Keep us updated on your progress. 
Paul
Obviously the Element14 is better than ever 
