Club head speed is a result of proper swing technique and sequencing, combined with strength and flexibility. If you want to increase your club head speed you will need to look at these two areas.

I would first look at your swing sequence. The swing sequence is the manner in which the components of your swing wind up or coil,  and then the order in which they unwind. Simply, the golf swing must unwind from the bottom up. It begins with a change of pressure in your feet, then the lower body begins to unwind towards the target. The lower body pulls on the upper body which starts to turn. The upper body pulls on the left arm which pulls on the left wrist which pulls on the shaft of the club which pulls on the club head. If your down swing uses this sequence, you will be generating maximum power. However, most golfers do not have this type of sequence. There are many ways to screw up the sequence. I suppose the most popular flaw is starting the down swing with the shoulders, throwing the arms and club over the top.

I have been introduced to a great new training aid that is designed to increase your club head speed. It is called the PowerChute . The great thing about this product is that by creating resistance in the down swing, it automatically causes the correct swing sequence. I have tried the PowerChute  on golfers with terrible swing sequences, and slow club head speed and it has improved everyone.

The second component of club head speed is strength and flexibility. If you suffer or lack in these areas you can not generate fast club head speed. There are great products that I recommend to my students that will help improve these areas. GolfGym  is a company that specializes in golf fitness equipment. I am a personal fan of the PowerSwing Trainer  and the Power Bandz . Both products can be used at home, and come with demonstration dvds. If you are really serious about getting into golf shape, you should look at Joey Ds book, "Fix Your Body, Fix Your Swing" . It is the best golf fitness book I have ever seen.