The Cambridge Greek and Latin Classics (Green and Yellow) series probably comes closest to your needs, but in that series there’s no edition of the Tusculan Disputations and only a book or two of Ovid’s Metamorphoses. It would be a good idea to start glancing at critical apparatuses once in a while, so that you get an idea of what shape your text is in, you become aware of textual problems, in which ancient texts abound, and you begin to learn how to use the critical notes. Incidentally, the Latin nom. plural of apparatus is apparatus, not apparati.
Bloomsbury, which seems to have taken over the Bristol Classical Texts and other publishers, offers a large selection of Latin annotated texts at your level, some of which are reprints of older editions.
http://www.bloomsbury.com/us/academic/academic-subjects/classical-studies-and-archaeology/latin-literature/
You can also try to find used copies of older editions of various authors on AbeBooks. The old Macmillan series are generally quite good and still valuable–Page’s Vergil in particular, despite its age. Over the course of the last century, however, there have been a lot of advances in scholarship–particularly in understanding the history and evolution of Latin literature, as well as Roman history, so if you use an older edition you might want to supplement it with more up-to-date readings.
The Oklahoma Metamorphoses commentaries are by William Anderson, who edited the Teubner Met. I recommend them highly. The Metamorphoses includes 15, not 12 books, and it’s a pity he never produced an edition of the last 5 books.
You’re going to have to pick up grammar by reading. I think you’ll find that there are no commentaries that are exactly matched to your needs. Unfortunately, the best way to master Latin grammar is by reading Caesar, who presents all of the constructions you learned about in first-year Latin, and who writes in a clear, crisp and unadorned style. But his subject-matter–himself and his accomplishments–gets to be tedious. Cicero’s speeches are also useful–and equally self-aggrandizing.
For reading poetry, you might want to acquire Wilkinson’s Golden Latin Artistry. Reading Latin poetry requires specialized skills–mainly getting used to the artful asyndeton that the Roman poets cultivated. Vergil’s Eclogues are probably a good starting-place for this, and Coleman’s edition in the Cambridge series would be helpful.
Don’t hesitate to post questions here.
Hope this helps.
