Well, starting at the beginning with Truce at Bakura and going book by book will make you as informed as anyone with the post Empire era.
If you want to skip ahead to Jedi/Sith, and be a little lost, start with the Fate of the Jedi series
Or go back and read the Bane books, Revan books, Old Republic books.
I also suggest the audiobooks if you are going book by book. They make the stories10x better and enjoyable.