Just to add my two cents...let me make this clear. The wedding ceremony is all about the Bride... but the reception is for the GUESTS. If you are a no class low life and/or your invitees to your reception are likely to show up in jeans/shorts and a T-shirt, just by a lot of alcohol and serve some cheap food. Have your buddy play music from his computer
However, if your bride is registered at a real department store (not Target) and your guests are likely to be in suits, sport coats, dresses etc., spend some money and show them some appreciation for the generous wedding gifts they bought you, and for dressing appropriately. You don't have to spend $40K plus to have a great wedding that you and people will remember, but you CAN'T GO CHEAP. People ALWAYS remember cheap ass weddings....don't be that guy/gal. You are only gonna do this once....make it memorable.
The worst wedding that I have ever went to, had no alcohol available (not open bar or for purchase)...except for the wedding party who managed to get sloshed driving around town taking pictures and kept their guests waiting for almost an hour. Meanwhile back at the reception hall, cheap homemade centerpieces adorned folding tables and chairs. The refreshments available were some punch and homemade cookies and cheap hors d'ouerves that ran out in 15 minutes. Those that did stick around for dinner, probably wished they hadn't.
The moral of the story is, If you are going to be cheap, just elope and forget about it.
Other suggestions....
No kids is a great idea...when the guest list has limits, you can invite more of your adult friends....and nothing kills a party like 4 yearolds running around the dance floor.
get a good DJ...one that knows how to work the crowd..... check them out at other weddings first before hiring them.
Take responsibility and get the party started your self by getting out on the dance floor...others will follow with the help of a few drinks.

If your guy is such a shy wallflower that he won't get on the floor, you shouldn't be marrying him anyway cause he's a loser.