[TakeTheLeap]

Well, according to the Catholic Church, you cannot have a Catholic wedding unless one party is a baptized, confirmed Catholic, and the other party is at least be a baptized Christian (can be any denomination, as long as they're Christian). So, on that front, you really can't have a Catholic wedding.
As far as kids being raised? That's something you two will have to sit down and discuss. Discuss your concerns, discuss all the options, etc. I'll give you a couple of examples. My fiance is Episcopalian, and I'm Catholic, and we've discussed raising the children Catholic because my faith is much stronger than his. My Uncle Bobby (Catholic) and Aunt Lori (Jewish) decided they would have cats instead of kids because they couldn't decide how they would raise them. My Uncle John and Aunt Jodi are the same, except they have dogs instead of cats. :P

It's all on how you look at it and how you approach it. Multi-religion families can work if you make them work, if you don't make religion to be a big issue.