I recommend using the bullet connectors and not soldering, at least until you have flown the plane. If the motor spins the wrong way, just switch two of the speed controller wires to revers the direction. I use 3mm bullet connectors on most of my stuff, and make sure they are insulated!
On the battery to ESC connection, I use Dean's plug, as they are keyed and prevent me from looking foolish at the airfield by plugging in power backwards and frying something(IF I have the plug soldered on right!)
Here's a place I often buy plugs from. They're in the US, so shipping time is reasonable, and free shipping. http://blackdogrc.com/bdrc3/#-CONNECTOR
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On the battery to ESC connection, I use Dean's plug, as they are keyed and prevent me from looking foolish at the airfield by plugging in power backwards and frying something(IF I have the plug soldered on right!)
Here's a place I often buy plugs from. They're in the US, so shipping time is reasonable, and free shipping.
http://blackdogrc.com/bdrc3/#-CONNECTOR