I’ve successfully used lists based on a variety of Mark Forster’s Autofocus systems for nearly 10 years. I’ve pretty much settled on his Final Version with some slight adjustments.
I’m sure others will disagree, but I still think Autofocus 1 is the best place to start so you can understand how he thinks about lists in general. This post includes an actual video of how it works that’s insightful.
His entire web site is an awsome discussion about anything regarding lists as time management tools. The Forums are where all the best info is.