<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/CtyhjB3c6jk&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/CtyhjB3c6jk&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object> I just find this episode hilarious.
Lincoln opposed slavery. He claimed that he wasn't going to end slavery until after secession, but he was against it in theory. He wanted to deport black people, but he didn't support enslaving them.
Lincoln did not support many things involving minorities, but for his day, he was a revolutionary in terms of civil rights. We must apply a sliding scale to these things to put them into proper perspective, otherwise we would have no role models.
Even though I admire him, you've been reading far too much Zinn. Lincoln made some speeches in Southern-leaning cities to placate them, not because of his actual beliefs. Northern slaves weren't included in the proclamation, again for political (and military) reasons. While true motive is impossible to determine (though his personal letters disagree with you, harshly), it's a ridiculous stretch to claim he wasn't against slavery, even with the evidence above.
Adding, go back and read the Lincoln-Douglas debates, the very basis for Lincoln's presidency in the first place.