Sorry if some of my advice is repeats of what others have said. It's a great 'scope - I've got one myself and it's given me fantastic views, even though I'm in quite a light polluted area. A lot of DSOs are visible no problem. Start with what you get with the 'scope and you'll have enough to be getting on with. But do get a book like Turn Left at Orion to help you navigate the sky. The finderscope isn't bad, but I prefer Telrads, so you might find it easier to use one of them. You can pick them up at quite a reasonable price if you look around a bit online. The 10mm eyepiece isn't much good so you might want to get a replacement for that. You may want a lower magnification eyepiece for wide views (some people use these to find objects in place of a finder, it's all personal preference). You also may want something a bit more high powered (say around 5-7mm) if you want to do some planetary viewing. Plus a barlow doesn't go amiss as it effectively doubles your eyepiece collection. The Tal barlows are great cheap barlows. A collimating tool is useful as the 'scope will need re-aligning now and again, though I've found it doesn't need tweaking too often. A red torch would be handy if you've not already got one. Other than that, all I recommend is a warm coat and a chair for the garden.