HI, I am looking for a ditachable pannini and sandwich maker. Do you have any suggestions?

You wouldn't believe how much we use our panini maker in our house. In addition to making great sandwiches, we also use it to cook burgers, grilled chicken breast, hot dogs and much more on it! I used to have a Foreman grill, but the panini maker works much better and the temperature is adjustable.
By detachable, I assume you mean that you want the plates to be detachable. That is the only thing I don't like about my panini maker, the fact that it's difficult to clean.
I've tracked down some pretty nice makers for you.
The one I like best, and would love to own myself, is the Griddler 4 made by Cuisinart. A floating hinge and two sets of cooking plates turn this multifunctional unit into a contact grill, panini press, large open grill, or griddle. Made of brushed stainless steel, this four-in-one, space-saving appliance offers cooking options that range from pancakes,sausages, and grilled cheese to fish, hamburgers, and panini. Its floating hinge adjusts to the thickness of food, while adjustable temperature controls ensure food is cooked properly. At only $112, it's a great buy for a machine that does so much...and the plates are dishwasher safe!

Cuisinart also makes a smaller, Griddler 3 model for about $72. The Griddler Jr. maintains the best of the Griddler family traits andhas a more compact build to fit comfortably on any countertop. It can be used three different ways to prepare a variety of favorites-steaks on the open grill, crisp-grilled sandwiches with the panini press, or burgers cooked to perfection, both sides at once, with the contact grill. The plates are also removeable on this model.

Here's something else pretty handy; reusable grilled food holders. You can cook your food inside them on your grill, and eliminate cleanup chores. At $10, it's a pretty handy way to save yourself some greasy duties!

Here is the one, I am using :

I found several pannini/sandwich makers for you. I was unsure of what style/price range you were looking for so I picked a handfull of different types. I hope at least one of them fits the criteria you are looking for!