When I was 26 and working on my Bachelor degree, I was a creationist. I knew only a modest amount about evolution. In particular, I was ignorant of the vast wealth of transitional forms. I thought there really weren't any. I listened a lot to what Drs. Gish and Morris had to say, even though I had my doubts about them -- it made me nervous that only angry Bible bashers debated them while credible scientists had nothing to do with them (aka didn't take them seriously enough to debate).
I enrolled in an Anthropology course, and we began learning about the fossils that were supposed to be linked to human ancestry. In my mind, they could clearly be grouped into either human or ape. Even the Australopithecines could be considered walking apes if you stretched things a bit. Until we came to Homo Habilis. I was absolutely unnerved. Ape? Human? I couldn't decide. Even scientists had debated the issue before assigning genus homo due to his better tool making skill. And then it struck me that if scientists had debated the issue, that is what you would expect for a transitional form.
That morning when I left for school, I had been a creationist. When I got home, I believed in evolution. The dominoes fell for a long time. When they finished falling, God had survived. Evolution was not an atheist belief.
So look at fossils like Homo Habilis. Look at whale evolution. Even creationists admit to "microevolution." The ONLY difference between micro and macro evolution is TIME. If you have an ancient earth, it is only a matter of time until you have enough small differences evolved that you have a new species. So you might want to look into the evidences for an old earth.