Due to my interest in not throwing something away that still has use, I got one of these:

http://www.amazon.com/Viatek-RE02G-G.../dp/B002MUAG1Y

This charger is capable of charging NiCad, NiMh, and alkaline batteries, and can handle AAA-D cells, as well as a 9 v(total of 5 batteries, if you don't have a C or D in either of the center charging channels). It is a smart charger that will charge until they are full and just keep them fresh after, and it will detect bad batteries as well(at least this revision does not use a piezo buzzer, which drove me nuts in the last rev). It may not bring alkalines back up to full force like a NiCad or Nimh, but it works.