χαῖρε ὦ φίλε,
Ethos, I agree with Mark. As I have Zerwick's book, feel free to ask me what he says about various words. Hopefully you can find a used copy somewhere.
I would also add these to the list:
1. The United Bible Societies' Translator Handbook series (multiple volumes on various NT books).
2. The word studies of Marvin Vincent, A.T. Robertson, and William Barclay are often helpful.
3. C.F.D. Moule's Idiom Book of NT Greek.
"τὴν ζωὴν καὶ τὸν θάνατον δέδωκα πρὸ προσώπου ὑμῶν τὴν εὐλογίαν καὶ τὴν κατάραν ἔκλεξαι τὴν ζωήν ἵνα ζῇς σὺ καὶ τὸ σπέρμα σου"-Dt. 30:19
"Ὁδοὶ δύο εἰσί, μία τῆς ζωῆς καὶ μία τοῦ θανάτου."--Διδαχή Α, α'