You will need a cutting mat the biggest you can afford and rotary cutter. I prefer Olfa brand myself. 6.5x24 inch ruler, sandpapered dots so you ruler doesn't slip(cheaper than Invisigrip)long thin straight pins, seam ripper and if you can afford it a 1/4 inch foot for your machine.
If you haven't quilted at all make sure quilting is a hobby you want to stick with before buying much more. Quilting can be expensive especially if you think you need all the gadgets that they make. If you want to stick with it splurge every so often and buy another ruler etc.. You can get lots of advise on what you need here.
Good Luck and Happy Quilting!!