Contract reception hall:
Make sure that the hall can accomodate the amount of guests that you are inviting. Also, find out about overtime charges, if any.

Hire a disc jockey or band:
Look in on another party where the DJ or Band is playing.
Talk to them about what types of music, games and giveaways are available.

Retain a caterer:
Get some recommendations from friends. The reception hall may have some recommendations, or they may have an in-house caterer. You may be able to get a good deal by booking both. Ask about a tasting interview where you can sample hor hors d'oeuvres and main courses.

Select and order your invitations:
A competent printer will be able to assist you with the selection and creation of your invitations. Remember, there are a mind-boggling amount of different styles and typefaces to choose from. Choose a style that fits your child's personality and your budget.

Complete your guest list:
Your final tally should be given to the caterer, florist and reception hall, since it affects the food amount, number of centerpieces and number of tables, respectively.

Send out your invitations:
Be sure to include directions to the synagogue and reception hall.

Touch base with the caterer and finalize catering arrangements:
This is a good idea, especially if you have any last minute food changes to make.

Order your centerpieces and party favors:
Centerpieces may be ordered from your florist. Party favors may be ordered from your local party center, online, or from a mail-order catalog.

Decide on those called to the bima for an aliyah:
Talk with your Rabbi about this.

Finalize seating arrangements:
Use a table chart, which you can easily make.

Create your placecards:
You may do this yourself or have your printer do it.

Wrap your party favors:
Simple party bags with handles are OK and can be purchased at any local party store.

Confirm:
Music: Band, solo musician or DJ.
Caterer: On or off the premises.
Florist: Ceremony and centerpieces.