I've had the Omega juicer for 6 months. It's sturdy and well-made. It's not particularly easy to clean, but some of the parts can go in the dishwasher. The motor is very quiet.
It's a very effective extractor. The leftover pulp is almost dry. After about 16 oz of juice, it starts to vibrate and you need to scrape out the pulp. It's great for firm, dense produce like carrots, beets, celery, apples, ginger. Parsley and other greens do ok. You can put peeled, seeded citrus fruit through the extractor, but it's a nightmare to clean out the citrus pulp. They sell a separate citrus juicing attachment.
I got a good price at mothernature.com.
Even with a top quality juicer, I find juicing is a lot of work. But the juice is delicious and it gives me an energy boost when I need it.
re: Val G
I think (but don't quote me on it) that the Omega and the Acme are very similar - very good at what they do, which is take the juice out of a fruit or vegetable by centrifugal force. All different peoople swear by different brands of juicers: some people will only use a Champion juicer (with which you can make banana ice cream, by the way), others insist on having a juicer that won't heat the juice it extracts, so that what you get has all the nutrients intact.
The Acme I have is very similar to the Omega in the shape of the basket and everything. The one I have was given to me by a woman who never used it and wanted it to have a good home. It is the most incredible piece of work: it's model 6001 from around 1970, and it has this very unsafe vacuum-cleaner cord which would be made about half the length nowadays. It is a real workhorse; I would advise you to get the most heavy-duty model you can afford; the 7001 is cheaper and has more plastic. I actually thought Acme juicers had gone out of production, but you can still get parts for them; I got a new blade for mine at Integral Yoga Natural Foods (13th street between 7th and 8th avenues). It's very important to have a sharp blade.
I would ask around; you'll get different answers from different people based on the juicers they have. I'll say that when I had a Braun juicer, I was unhappy with it because it was very cheaply made (mostly plastic and aluminum) and started rattling early in its career. The most important thing is to get a solid juicer that will serve you for years. Good luck.
(Below is a link to one of the many restaurant-supply placeso n the Web; I'd just do a Google search and shop around to get an idea.)