Wow. I like these charts. How are you producing them? Quicken can produce some nifty graphs, but not like your wallchart...
He said he's using Google Spreadsheets (/Excel). I'm pretty impressed with them too, I might start doing a couple for myself!
Right, my charts are created by a Google Spreadsheet. The nice thing about Google Spreadsheets and Excel is that you can use them to do pretty much anything you can think of. The main downside is that the spreadsheets can take quite a while to setup.
What really tipped the scale in favor of Google Spreadsheets for me is the fact that I can update it from any computer with internet access. I've taken advantage of this many times, with updates from my work computer and dad's laptop.
Another nice thing about Google Spreadsheets is that it's improving much faster than Excel or Quicken or other tools. When I started, Google Spreadsheets didn't even have graphs.
A new feature of Google Spreadsheets that I haven't added yet is the ability to do lookup in Google Finance from a cell. This means that instead of checking the balance of my Roth IRA every month, I could just set a cell to be "=X shares of VTIVX" and it would automatically keep up to date. I don't know why I haven't set that up yet, because it sounds awesome.