Rechargeable alkalines are a waste of money - really don't go there. Normal alkalines aren't really rechargeable - while you may get a few seconds more out of them, that's all.
Since I'm not in the US, I've no idea what Target or Walmart carry.
Walmart sells a 4xAA + Charger combo of Eneloops (low self discharge) for $20. This is usually found in the camera section, not with the bulk of batteries.
I like the Energizer 15 minute charger. Sometimes they even have one that comes with both AC/DC cords. Takes a little longer than 15 minutes if you are charging more than about 2200mAh batteries though.