I agree with the first poster -

Don't keep people out of your business by labeling it as "family" or "Christian" (Even as a practicing Christian myself, I tend to get nervous about a 'Christian' business)

Second, that's not a bad idea -- rent space to organize a party. If people come out, then you have a client list all ready to go!

If space allows you could group your "non-bar" into sections -- one for dancing, one for pool/games, and one a lounge/food tables.