If you're interested in some of the classic intellectual / philosophical arguments for faith (albeit from a Christian perspective) you should check out "Reasonable Faith" by William Lane Craig.
I do wish Craig had reframed from the personal shots he takes at various atheist/agnostic writers (which clearly cross into ad hominem at many points) but he is by far the most interesting defender of faith out there (IMHO). In his defense I think he was playing along with the at times very incendiary approach taken by Dawkin's and many other "new atheists" so it's not like he started the brawl :-). I think he's way too confident in Anselm's Ontological argument, but he has clearly studied it a whole lot more than me so I don't hold a strong conviction there.