Medela Swing breast pump with milk storage bottles and lots of spare bits and pieces. Comes with instructions and with a box of microwave sterilising bags and breast milk storage bags. Used lightly, would make a great bargain for someone who has a tight budget as these cost nearly £100 new (couldn't afford it now!!)
You can of course buy brand new shields and valves and bottles if you would rather not use second hand (even though they do get sterilised) but the expensive bit (the actual machine) has never come into contact with breast milk. Make me an offer: happy if you don't want to take all of the bits or do and chuck out what you don't want.