This is my first time painting any miniatures, and I didn't want to break the bank with the more expensive model paints. So I went to Hobby Lobby and got some Folk Art acrylics. Then I ordered a Citadel shade set from Amazon, and I also picked up a bottle of Lahmian Medium for thinning the acrylics.
Big thanks to Sorastro, without whose videos I wouldn't have known where to start.