I've been timeboxing a lot lately and it's been very helpful, so I've designed a web app that I am going to build out in my free time to help with planning and tracking my progress. Here's a screenshot: https://dl.dropboxusercontent.com/1/view/l1j1xg8tzna8d5t/Cap...
I use a combination of Remember the Milk for recurring tasks with Trello for managing tasks and projects. I try to apply a GTD methodology on Trello boards and I like the results thus far. Trello is really flexible, has a simple basic interface, but also a lot of (optional) depth for power users.