There's no limited evolution. If you believe in it, then you don't believe in a God, at least not in the christian tradition.
Then I suppose I am an untraditional believer in God.
I am a university educated person who has taken several advanced biology courses. I've seen limited evolution in practice. But I have never seen anything that would convince me that such evolution ever has or ever will cause one species to turn into another species.
I am quite shocked that anyone would claim to "not believe" in evolution at all though. These are either grossly uneducated persons or else they think, as you do, that Christians can't admit to belief in evolution for fear of undermining their belief structure. I have no such qualms.