For a 29 gallon (depending on what you are wanting to keep) you could get away with just waterchanges and Live Rock as your filtration. For lighting (again, depending on what you want to keep) I would recommend a 150w Metal halide fixture for this task (or if handy enough, a 150w Retrofit kit and custom canopy). I guess what I am trying to say, is
Welcome to TRT!!
Tell us a little more about what your plans for the tank are and what you intend to keep in the tank. My biggest piece of advice to you is to read... alot! Just follow some of the build threads here on TRT and it will help you along the way. Also, never be afraid to ask a question... the only dumb question is one that is not asked (although usually the answer can be found quickly using the search feature here on the site

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