What I used in 1st year Greek.  Very short.  Basically had to memorize it.  I enjoyed it.  Most of all, it instilled a love for Greek, so that I didn't lose it when I graduated.

Many seminaries prefer this.  I don't own it, but many of my friends said it's better than Black's intro to NT Greek.

Used in 2nd & 3rd year Greek in seminary.  We called it "fat Wallace."  The standard (referenced in all the latest technical commentaries).

What I used in 1st & 2nd year Hebrew in seminary.  I've heard mixed reviews, but I really enjoyed it.  Plus Peter Gentry recommends this.  Love anything written by Ross.

For more advanced OT Hebrew study.

Standard Greek English Lexicon in academic circles.