This is the grooming table I have had for over a year and I love it:
Amazon.com: Master Equipment Pet Folding Grooming...
It is very well made and sturdy, and is large enough for my girls to feel safe, yet they don't try to wander around. I used to groom them on the kitchen counter or a table on the patio, and they would always try to walk around. With the grooming table, they pay attention and stand still much better, which helps us all get done quicker.
The arm is sold separately, and now that my 4 are so used to the table, I don't have to use the arm/noose. This table works well for all my dogs, the 6-7 pounders and one 17 lb.; someone with only one little 4 lb. pup would not need this large of a table.
This table is also very handy for other purposes too. I put a tablecloth over it and use it for a portable bar at a party, or for a dessert table at Thanksgiving, etc.