Saw a couple of specials at my local store. Might be available at other stores too.

Drill driver with 2AH kit and charger $99. NB: this is not a hammer drill. That is fine for me because I have an SDS drill for masonry work. Normally the non-hammer drill itself is $99 so this deal is basically a free 2AH battery. The battery included is not a Lithium+ battery so it has no fuel gague. This drill apparently has a plastic chuck.

There is a 4AH battery and charger for $99. This normally sells for $145, so I figure Bunnings brought in the 5AH kit at the same price point and are now dumping any old 4AH.