I also wouldn't lie him up with Santa Claus and extra crap like such.
A little make-believe won't hurt and can help the imagination. I think the Santa/Easter Bunny/Tooth Fairy idea is fine. It can be a great growing and learning exercise. A curious child will
reason their way out of that sort of thing by themselves and learn something in the process. I'd be honest if my kid asked, but I wouldn't outright tell them day-one not to believe in Santa or whatever.
On a more serious note, when it comes to religion, I'm personally not a believer. My wife is, though not fundamentalist-ly so. We differ on what we believe, but we have a respect for each others right to believe what we want.
When it comes to how we raise our kid, we both agree to avoid indoctrination, whether that be indoctrination into theism or atheism. If our daughter is curious and wants to go to church, she can. If she doesn't, we won't force her. If she's curious about religion, then awesome. She can learn about it all she wants. In fact, I'd love for her to learn about all types of religion. If she chooses to believe, I'll respect her wishes.
The last thing I want is for her to believe something simply because I said so. I want her to ask questions and come to her own conclusions when she is old enough to do so. If she asks me if god exists, I'll give her my opinion, but I'll also recommend she ask mom (who does happen to believe in god).
I want her to explore her options, not just assume the faith (or lack of) she was born into is how things really are.