Thanks Mythmere. Yeah, I've always said that our version is Castles and Crusades, the Bride of 3.5. My group generally likes some of the elements of 3.X and so we found a way to add those in w/ out overpowering the core of C&C. After nearly a year of play at around 5-6 sessions per month, I think it's held up pretty well. IIRC your group consists of quite a few 3.X True Believers so you might want to run those rules or something similar by them. If they give you the same old "Why don't we just go ahead and play 3.5" line, just explain that you prefer the simplicty of the NPC and Monster stat lines, speed of combat, and flow of play. It should be a very happy "middle way" for all parties concerned.
The houserules document is meant to be used specifically in our setting, but I've also used it in a 3-month long Ravenloft C&C minicampaign. If you're running your own homebrew, you might want to take a look at my Cultural Packages document, not necessarily to use it, but to get some ideas on what I did to help establish background skills and the like. Drop me an email if you'd like to see it.