John Deere makes one called the iMatch. I got a quote of $170 on one of those. Landpride also makes one that looks pretty nice. I'm sure there are others, too.
You might want to use the 'Search' feature here and look for something about "quick hitch" or "quick attach" and read through those threads. I know there have been quite a few discussions about them.
One cautionary note here. I just bought a quick attach hitch and have found that only about half of my attachments stand a chance of working with it without 'cut and weld' modifications to the implement. That half that "work" still includes some that have no margin for error when hooking up. By that I mean the lower hooks on the quick hitch just barely fit in the inner or outer collars of the pins. Obviously, in an ideal world, those hooks should be in the absolute dead center of the pins on either side to allow a little more tolerance when backing the tractor up to the attachment.
Deere does guarantee their iMatch to work with all Deere and Frontier (another Deere brand) of implements. I would assume that Landpride's hitch works with all of their implements as well.
The bottom line is that until all of the implement makers adhere strictly to a Category 1 standard, this will continue to be a problem. Ironically, there are some implement makers who don't even seem to have a standard from one of their implements to the next. /forums/images/graemlins/crazy.gif