I see various ones on the web (such at this one), but not being a project manager, I can't really tell which ones are good. I'm looking for a checklist of things to do and important terms; specifically for someone who is new at project management.
This is one I carry around with me all the time: The Project Breathalyzer.
So I beg to disagree that it is only useful for a beginner :-). When you're tied up in project work, it is a healthy habit to sit back at a quiet moment and reflect upon your project. A good checklist can help organise your thoughts.
I found the Breathalyzer through Glen Alleman's site, which is a treasure trove for beginners and experts. One blogpost from Glen is of particular interest for your question: A simple way to put PMBOK to work.
What I also found useful over the years is a copy of Table 3-1. Project Management Process Groups and Knowledge Areas Mapping in the PMBOK. (currently on page 43 in the Fourth Edition).
I actually forgot to mention the most important one, which is my own checklist. It is based upon the Breathalyzer, the PM methodology of the organisation I work for and personal experience. I strongly advise you to start creating your own checklist today (styarting with the examples provided here). It will be a good friend along the way.
I'm not so fond of cheat sheets, as I don't trust in recipes and prefer real thinking. But it can be a good help for a beginner, I think.
The official Project Management for Dummies cheat sheet should be a good beginning, especially if you're not familiar with project management:
Some other cheat sheets:
http://www.thepracticalpm.com/serendipity/index.php?/archives/18-PM-Cheat-Sheet.html Its step-by-step approach seems interesting and make it immediatly usable for a project.
http://www.focus.com/fyi/human-resources/managers-cheat-sheet-101-common-sense-rules-leaders/ This one has a more transverse approach, things you should know or you should think about all the time, even if I'm not ok with all the points: Is body language really so important for a PM? I'm not so sure...
I'm not fond of checklists myself. I think they lead to sloppy thinking. Better understanding the process can lead to using the right tools at the right time. If it's a memory aid for a new methodology, I like it to be a list of questions and prompts. (@david, a checklist is a list of points that need to be checked off. Anything that makes someone think, isn't a checklist). For instance.
Do you think you've completed initiation? Can you answer the following.
Do you know what you are supposed to be delivering - could you explain it in less than a minute? Who are your key stakeholders and why are they key? When is your planning session? Who will be there and why?
I hope that illustrates the idea.