Habakkuk is one of my favorites of the minor prophets. Basically Habakkuk cries out to God for help, God gives an answer that Habakkuk doesn't like so he complains, God reiterates his plan to draw his people back to him, and finally Habakkuk trusts God. He really sums it up with the last few verses. We need to learn to pray like this!

Habakkuk 3:17-19 (ESV)
Though the fig tree should not blossom,
nor fruit be on the vines,
the produce of the olive fail
and the fields yield no food,
the flock be cut off from the fold
and there be no herd in the stalls,
yet I will rejoice in the Lord;
I will take joy in the God of my salvation.
God, the Lord, is my strength;
he makes my feet like the deer's;
he makes me tread on my high places.
Paul refers to Hab. 1:5 in his sermon in Acts 13:41.
The writer of Hebrews refers to Hab. 2:3 in Hebrews 10:37.
Hab. 2:4 is referred to in Romans 1:17, Galatians 3:11, and Hebrews 10:38.