Fast 1000 & 500

The fast 1500 got me thinking... what would my list look like at 1000?

Master
3 bikers, 2x w/Plasma, Attack Biker w/MM
3 bikers, 2x w/Flamers Attack Biker w/MM
2x 3 bikers, 2x w/Flamers
1x 3 bikers, 2x w/Plasma

At the lower score I expect MM & plasma to be less important but hey, I'm new.

How low can I go & still like the list? 500 Points baby:

Master, this time in land speeder
3 bikers + Attack Bike w/Auto Cannon
3 bikers, 1 w/Flamer

And it still holds true to my Turn 3 rule :D