Another great source for buying equipment is Mike Kelley at Kentuciana Soaring. Mike is a hang gliding pilot who not only knows what you need, but he has a reputation for beating your best price. The Ham community knows where and when the next one is. They're great fun, and full of fantastic bargains. Another important part of your radio is a holster.
Most pilots attach the radio to their harness.
Place the holster in a convenient place where you can access the radio in flight. Being able to see the display in flight is a plus. Also, always attach a backup string in case your radio is dropped. Other accessories include speaker-mics, spare batteries, radio chargers, car mount antenna, cigarette lighter power adapter, and others. In order for someone else to use your Ham equipment, you must be physically present and constantly monitor their activities.