First and most important, get a helmet. Full face. One that fits right. Don't look at cost, just try try try until you find the one that fits the best. Go to multiple stores and try on every brand you can find. When you find it, pay for it. Get a tinted shield too. Sunglasses under a helmet is a PITA.
Next you need an armored jacket. At leat get a textile one at first. They are cheaper and will get you through the main part of the riding season. Not too tight, you may want to wear a layer or two underneath when it is a little cooler. You can pick up a leather one later for the cool/cold days. But make sure it at least has elbow and shoulder armor or at least the pockets for it. You can get armor separately. Spine armor is also recommended and very common.
You also really need gloves and boots. DO NOT ride with sneakers. Gloves are cheap. Get some nice summer ones now. Later you can get a medium weight and then an insulated summer glove. Get really good, comfortable, waterproof boots now.
Finally, its a good idea to get some riding pants. I wear draggin jeans. You can get the jeans from the us company or if you go to the australia website you can get cargo pants, chinos or camo pants too. And there's a million other companies and styles of riding pants to choose from. Some come with armor, the draggin ones have kevlar in them... you just want to make sure you are protected with more than standard jeans that will only last 4 feet in a slide before you start losing skin and muscle tissue.
This seems like a lot, but you need it all. Take out a loan, charge it, sell your body, whatever you have to do.
