Buy yourself a good hand mixer. Then buy aluminium baking tins of different sizes - buy 2 x 6 inch pans , 1 x 8 inch pan, a loaf tin and a brownie tin and a cupcake tray. Another important thing to invest in is a silicon spatula
Oh and i totally forgot measuring cups and measuring spoons. Start with something basic like this recipe
Buy baking tray sets online. Aluminium is as good as the non stick ones. Sets of 3 are available at reasonable price. A cupcake tray, choose the 12 cupcake ones as 6 is too small. (I have done this mistake). A philips whip cream beater if you want to do icing. Mittens or gloves...very imp.