Once you have looked at all the options, make a few enquiries. Most wedding DJ's or live bands will invite you to a set or a gig so that you can hear them. This is a very important thing to do before making a decision. It is also a good idea to speak to people who have already used them for a wedding or special event. You then have the burden of making a final decision!
Many couples these days go for a live band or a well-recommended DJ. Either would be fine as long as their repertoire contains a good mix of current hits and those from yesteryear. The main goal is to ensure that as many of your guests get up and have a dance. The best way of securing this is by a play list that caters for each genre of guest - whether they are under 20, 30, 40-50 or 60+. Don't forget that the evening entertainment will only last for about 4 hours - this only equates to about 40 songs so make sure they are all hits that will get everyone up on that dance-floor. It is not unheard of for couple to select each individual song that they want played; it's your special day so don't be afraid to ask for exactly what you want.
By adhering to these simple rules, you will host the best party of your life and your guests will be talking about it for years to come. That's how you know you have chosen your wedding entertainment and got it right!