The IrishCalvinist ran this great piece yesterday. Fits in great with our thoughts on "Does it matter what I believe?":
Can we become so obsessed with making our theology work or pursue the “correct” theology with such fervor that it subtly becomes the thing we worship and not the Creator behind it?
This is indeed a danger. Our sinful hearts can even use good things like the study of theology as an altar for the personal worship of self. This is tragic. The pursuit of and growth in the knowledge of God is not bad, in fact it is commanded (Matt. 22.37; 2 Pet. 3.18). However, it is true that knowledge in general and theological knowledge in particular may puff up believers (1 Cor. 8.1). So there is a command to learn and a caution toward the growth of pride.
Read the rest here in "Can Theology become Idolatry?".