Collision insurance will help pay for the replacement or repair of your own bike should something happen to it, and full, or comprehensive coverage pays for everything, including heft, vandalism and all costs associated with any accidents you may be involved in.
Once you decide on the type of insurance you want and the deductible you're comfortable with, it's time to start shopping around. The best way to find a good deal is to talk to other bikers in your community to see what carrier they use and what cover ages they carry. After that, the decision is yours. The important thing is to get what you need for a price that you can afford.
The first thing you'll have to decided when purchasing motorcycle insurance is what type of coverage you want and need. If you've taken out a loan to buy your bike, your creditors will more than likely require you to purchase full coverage until the loan is paid in full, but if you were lucky enough to pay cash for your bike (or handle financing in some other fashion), than you may be able to decided exactly how much insurance you really need and want to pay for.
Liability coverage allows you to carry a low premium, but keep in mind it doesn't cover any of your costs associated with an accident, theft or vandalism. It is basically a policy to cover the other guy and any costs you may find yourself responsible for.
