I did buy mine from Costco. It is the Jack Lalane Power Juicer. It was $10 less at Costco than it was at the gourmet store at the mall.... plus Costco has a good return policy.
I don't just juice veggies. Straight veggie juice isn't particularly palatable, so I always add just a bit of fruit (usually apple). Carrots are also delicious as juice.... in fact, I will make just straight carrot juice sometime.
Not sure if you are looking for suggestions or recipes or what. I usually juice a variety of veggies including carrots, cukes, celery, red bell pepper, and beet. For fruit I have used kiwi, apple, pear, mango, pineapple, orange, lemon, grapefruit.
That particular juicer isn't powerful enough to effectively juice greens (wheat grass, barley grass, spinach, parsley, etc). If I am feeling the need for that, I buy it already juiced and just add it.
If you want any more information, just let me know. And there was a thread about juicing here just a few weeks ago. You might want to take a quick search for it...........................P