mtop - A Resource Monitor for Crowded Menu Bars

I regularly check MacMenuBar.com for new additions. Today i found a nice little app called mtop. It's a monitor for each CPU core, your GPU and your RAM. It also provides PIDs for running processes. Apps like iStat Menus and Stats are great at doing this, but they take up far too much room in the menu bar for my taste. I just want a single icon I can click on to get the information I want. I don't need a heads-up display.

There isn't much to configure in mtop. You can choose one of eight different themes. Clicking a button reveals the running processes, which are hidden by default. The app is available in the Mac App Store for $.99.