About the edition itself: I have a copy of this edition and of the translation by Knox. This edition is by far the best. In this edition, the 'additions' to each section (paragraph, to all intents and purposes) are placed immediately after the section to whicnh it relates, whilst the Knox edition places them at the back of the book. Since you will definitely need to read all of the editions to get to grips with the text, this makes this edition by far the best, as with it you don't need to waste time and become frustrated finding the relevent 'additions'.
About the text: If you've never read Hegel before, then you're in for a bit of a tough ride at first. Well, I say though, I really mean nightmare. I'd reccomend that you read the Hegel Dictionary either before you start the text (it was the set reading for my first week of a University course on Hegel), or use it as a reference as you go through, or both.
But don't let it put you off reading it. If you are at all interested in the philosophy of free will, punishment, morality, rights of a community with regard to the individual within the state, Marx's philosophy (which was, pretty much, a reaction against Hegel's philosophy) then this book is indispensible.
If you need a secondary text (which you probably will), then I'd recommend Charles Taylor's 'Hegel'. This book covers prety much the whole of Hegel's philosophical system, and to understand Hegel fully (or at least well, if 'fully' is impossible!) you do really need to have some knowledge of the rest of his system.
If you fancy a shorter text, then I'd go for Charles Talyor's 'Hegel and Modern Society'. This is basically two chapters of his 'Hegel' book with a bit added. It's good, but considering that most of this book is contained in his 'Hegel' and I think that 'Hegel' is cheaper, I'd go for that anyway.
Other than that, there is Franco's 'Hegel's Philosophy of Freedom', which is excellent.
Avineri is also excellent on Hegel, as good as Taylor, maybe.
Dudley Knowles provides a commentry merely on The Philosophy of Right, but I do not rate this as highly as the other mentioned, though if you can get hold of it in a library, I'd say it's worth photocopying some of his excellent explantatory diagrams of how Hegel views soeciety.
Finally, for something a bit different, you might want to have a look at Popper's 'The Open Society and Its Enemies: Volume 2'. Make your own mind up, but as I read it, this is the worst interpretation of Hegel's Philosophy of Right that I have ever come across. So, I reccomend that you read this only after reading the whole of Hegel's text. Otherwise, you might take some of Popper's criticisms on board and fail to get to (what I and most others that have read the text) obviously wrong conclusions about what Hegel was getting at. Best to read this in order to define what you think Hegel means with respect to it.