This is mainly for my own reference. I think this is the simplest setup one can have for a preflashed Arduino clone. I am using one of the RBFK's from Wulfden. I have to say, their technical support is second to none - I am very impressed. Thanks to Brian from Wulfden for his help.
Pin 1: Pulled up to 5V via a 10K resistor
Pin 7: 5V
Pin 8: Gnd
Pin 9: Crystal 1, then going to ground via a 20pF capacitor
Pin 10: Crystal 2, then going to ground via a 20pF capacitor
Pin 20: 5V