A Greek-English Lexicon
If you want to read the original Homer, you absolutely need to have a real-good dictionary beside you. What is the best one among so many version of English-Greek dictionary? So many choices! But this one is the best dictionary I have ever had! Liddell's "A Greek-English lexicon" of Oxford University Press contains Ionian and Doric spelling other than Attic dialect, and epic form as well. Moreover, it shows us kindly the forms of irregular declensions and conjugations. Of course, besides Ilias and Odysseia, you can read New Testament without buying specialized dictionary for it. Surely other ancient Greek authors like Platon. The only one problem is its price. But it is sure that you will be paid back by its high utility. It will surely be a rewarding investiment for your study in classical litterature. Ranged from Pros to debutants.