What is the Brachah that she requested?
Rashi: It is income.
Radak, citing Targum Yonasan: It is inheritance.
What was her complaint "you gave to me Eretz ha'Negev"?
Rashi: It is a dry land.
Rashi (from Temurah 16a): It is a man without any [monetary] good, only Torah.
How did Kalev answer her?
Rashi: He gave to her springs [Malbim - to irrigate her dry land].
Rashi (Shoftim 1:15): He gave to her Beis ha'Ba'al (a field that need not be irrigated; the rain suffices for it).
Radak: He gave to her pools of gathered water.
Malbim (Shoftim 11): [He gave to her springs, and] hinted to her that she already has a husband who draws running water from the Supreme source of Brachah, and below (lower) Divine and human Chachmah.