Tradition dictates that the bride’s parents pay for the vast majority of the wedding but that tradition is changing. More and more couples are actually footing the bill these days. Therefore, more and more men are getting involved in the planning process.
If you find yourself in a more traditional circumstance don’t get too happy, in fact, prepare to cough up some money!

Here is the breakdown for what you are “traditionally” responsible for paying for:

Marriage license
Bride’s bouquet
Bride’s Engagement and wedding rings
Boutonnieres and corsages for groom’s family and attendants
Gift for bride
Gifts for groom’s attendants
Hotel accommodations for the groom’s attendants
Honeymoon
Transportation for the Groom and best man to the ceremony
All costs of the rehearsal dinner
Transportation and lodging expenses for the groom's family
Groom’s Attire