Speaking as a Wiccan, using magic, casting spells and things like that ARE NOT the Wiccan religion.
Christianity has a long and storied tradition of magic. Try Christian mysticism, instead.
Saying you want to be Wiccan for the spells is like saying you want to be Jewish for bagels, hun.
The Magical Writings of Thomas Vaughan:
http://www.amazon.com/Magical-Writings-Thomas-Vaughan/dp/0615149014
Greater Key of Solomon:
http://www.amazon.com/Greater-Key-Solomon-MacGregor-Mathers/dp/142092818X
Ancient Christian Magic:
http://www.amazon.com/Ancient-Christian-Magic-Marvin-Meyer/dp/0691004587
The Divine Synthesis and Realization of Magic by the Christian Revelation
http://www.amazon.com/Divine-Synthesis-Realization-Christian-Revelation/dp/1425305385/
While there are bans against specific magical acts in the Bible, these books all detail magic allowed to Christians.
If you believe in a singular god, Christ, sin, etc, please stay on your side of the fence and stick to CHRISTIAN MAGIC.