I would also try Heli-fever.com, the shipment is a little slower, but they sell blades fairly cheap, and they also sell a pair of foam blades for those who are not currently flying in 3d mode. Word of caution though, If you change to the foam blades, they do have pitch in them. I flew the foam blades while learning to fly because they were only 4 dollars a set and when they ripped in half I could tape them back together.

what i mean by warning about the blades having pitch, is that you may have to adjust the servo rods because the blades will already be producing lift because of their natural pitch. if the pitch is too high you may create a situatio in which you have too much torque for the tail rotor to keep up. I found that you can unplug the main motor and then turn your helicopter on. check and see where the main blades are sitting, this is your zero mark. Any throttle(collective) you input from this point on, will cause the pitch of your blades to increase. As long as the main motor is disconnected, you can test this out. Just remember, that this does not apply when the idle up switch is used, but these blades are not meant for 3d flight anyway(not really stiff enough to endure it).