Haha no budget FTW! Ours was around $35000 give or take a few thousand, but we had 500 people there. Yours seems about right if you're paying full price for everything. We ended up saving a lot of money on most of our stuff and by doing lots ourselves (like the wedding favours) I'd say you'll probably be cheaper than $35000, but it's better to have extra.
however you could easily blow a budget on rings or the dress, something to consider. If you do make a budget do your damndest to stick to it as much as possible.
Success is the ultimate revenge.