I highly recommend tempo trainers for golfers of all abilities. Tempo is an important fundamental of the golf swing, is frequently overlooked, and good tempo, like correct timing for an automobile engine, is essential for good performance. A fundamentally solid golf swing will not produce results without good tempo.
Because the parent company is no longer in business, PerfectSwingTempo trainers are available at the closeout price of $75. The PST Trainer includes an IPOD and charger with four swing tempo programs (full swing, pitch, chip, bunker), an instructional DVD explaining how tempo works and how to use the trainer, and a CD with the tempo enhancing music program, enabling you to "que" yourself for better tempo anyplace you can play or download it to, such as while driving to the golf course.