I started out with a Juiceman from Target and it worked well for a few months and then some plastic pieces inside cracked and came apart. Replaced it with a Jack LaLanne Power Juicer ($99) from Wal-Mart and it's held up well.
The Power Juicer has a detachable pulp container so you can just empty it out and continue juicing rather than having to stop and disassemble like the Juiceman to remove the pulp when it fills up. The chute design is better and larger on the Power Juicer and doesn't jam when feeding.
I travel with mine and Wal-Mart also has a more liberal return policy than Target. Target told me they wouldn't accept a return or exchange and that I would have contact the manufacturer. So I now purchase things like that at Wal-Mart for an easy exchange when I am on the road.
Jiggity is correct about masticating vs centrifugal and the argument is that in centrifugal juicers, the high speed can produce too much heat which can kill the enzymes. Another benefit of masticating juicers is that they are more efficient and will provide more juice from fruits and vegetables.
I'd like to purchase a masticating juicer down the road but I'll probably pick up an inexpensive manual wheat grass press next.
Also, if you're into raw foods a
spiralizer is a great kitchen tool addition for creating noodle salads - beets, zucchini, summer squash, apples, etc.