A great gyro to go with is a Futaba Gy 240. It's going to run roughly $100 or so, you may be able to find a used one for less. If you have a heli radio, someone is selling an unused GY 401 on www.rcgroups.com for only $105 shipped. A great all in one charge to have is the Triton, a new one will cost roughly $130. You can charge nicads, nimh, lithium and lead batteries. If you weren't looking to spend that much, I believe the Duratrax Piranha I"ve heard is pretty good for nicads and nimh and it's about $50.

Your battery pack is ok but the flight times will be very short, probably only a couple of minutes if that. GP 3300's are good cells and Sanyo hrsc 2600 are also great. Sanyo RC 2400's nicads pack a lot of punch and are durable as well...