Doh, we just realized that we left the dress code off of the official invitation (coming soon to a mailbox near you). So here it is in all it's glory:
Welcome Reception (Friday Night): Business Casual - No jeans and t-shirts, but you only need to wear a tie if you want to.
Wedding (Saturday afternoon): Business attire - Ties and jackets for men, dresses for women.
Wedding Reception (Satuday Night): Feel free to wear what you wore to the wedding, or if you want to change in to something less formal (Buisness Casual), that is great too.
For those guys out there (like me) who don't know the dress code lingo, here is a handy picture: