But Ouriel post contain the exact pitfalls it describes – from top to bottom…
At the top is the header. UI ? that is an Israeli title. US professionals are using  UX (user experience) and IxD (interaction design).  You may say it is just a terminology thing, but I would argue that it does say something about how we view our profession. We design experience and interaction and not the interface. If we call ourselves UI designers then this is how we are perceived – and then the requirement is a great UI guy or a graphic design with UI knowledge (a recent job posting I just saw), instead of a UX team.

At the bottom (last but not least) the beginner tips.  These are great tips exactly for a UI guy (not even a great one).
Reading - The reading is  cool but limited. If you want to read about UX try this short list of UX blogs you should read (including Smashing magazine and others), or go over one or two reading lists for the top UX books (there are more of course).
Doing - To start the design process with a Balsamiq mockup will not pass for a good UX process by any standard…
What about user research, workflows, personas, story board… See the classic The elements of UX (even if a little outdated) by J.J. Garrett or the UPA well known poster for Designing the User Experience, these two will give a beginner some insight on the UX process. I’m not saying you must start doing it all, I’m a realistic J, but I think that even as a beginner, you need to have an idea about best practices before you start. And still whatever you do and how limited resources are, you need a phase of research before you start prototyping!