Apart from the above comments on the capacitor values, no one seems to mention the fact that the diagram shows two transformers - I hope you are not buying two of them as well.. ?? - unless you have need for such a large current ?
Also assume the posted schematic is just part of the whole power supply - and wonder what on earth they have done with the voltage regulators.
Would stongly suggest you search these forums and the web for a much better low cost diy psu design - they are cheap and easy
Think it might be worth you mentioning to this forum the name of the course / book you are using - makes me wonder if its any good ...