We'll start things off with:
September 25 New Moon. The Moon will be located on the same side of the Earth as the Sun and will not be visible in the night sky. Perfect for hunting down deep space objects with your telescope.
September 26 - Jupiter at Opposition. The giant planet will be at its closest approach to Earth and its face will be fully illuminated by the Sun. It will be brighter than any other time of the year and will be visible all night long. This is the best time to view and photograph Jupiter and its moons. A medium-sized telescope should be able to show you some of the details in Jupiter's cloud bands. A good pair of binoculars should allow you to see Jupiter's four largest moons, appearing as bright dots on either side of the planet.
Double cluster :
Best viewed with a lower power eyepiece this often overlooked object is very easy to find. To do so locate Cassiopeia and use Ruchbah as your point of refence, then from the just pan down and you will pick up the clusters. In a reasonably dark sky this is a naked eye object which makes it even easier to find.
NGC 925 :
This is a firm favourite of mine as it show great shape when observed with a medium power eyepiece. At mag 10.7 you will need a a dark sky and a good bit of aperture yo amke the most of this face on galaxy. Located in the Triangulum its easy to find using the charts below.
Andromeda :
An all time favourite for any observer, with its surface brightness being so bright its an naked eye object for dark sky locations and some fantastic details to be picked out through the eyepiece. M31 responds to low power really well so forget those 10-8mm a 32mm will be perfect. Once you get you eye in Andromeda will start to reveal her dust lanes and you might get a glimpse of the outer star cluster NGC 206.
