Cool. I've read many reviews on .20 pellets, and (correct me if I'm wrong) the general consensus seems to be that Daystate's own pellets are particularly good. Cash-permitting, I'll be trying out quite a few brands of pellets when the rifle is up and running.
All I need to think about now is a scope. And mounts. And a bag. And a pump. And a silencer. And gun oil/cleaning kit. And money to buy it all...