There are a lot more books related to Buddhism and Christianity out there than I thought. I will try to link to them in this blog and also at my Amazon site, which is dedicated to this topic. Two of the most prolific authors proposing views of Christianity that are compatible with Buddhism are Thomas Merton and Marcus Borg. For Merton, it is important to keep in mind that he began with the sort of misunderstandings that Christians typically have about Buddhism and slowly learned more and more. The more important part of Merton's work is his view on Christian spirituality, which is very compatible with Buddhism (in my opinion - Merton eventually came to this conclusion late in his life). Marcus Borg is a more contemporary writer who articulates a view of Christianity based heavily on scholarly and historical work, which I think is the way to go. You don't have to agree with all of his interpretations but it is important to understand the actual history of Christianity and the bible. When you understand what is known and not known about Christianity it is much easier to reconcile it with Buddhism.
Because these two wrote so much I gave each of them there on page on my Amazon site.