arniec-
One thing you might want to think about that would be very beneficial: Study the design calculations required for composite beam design and write your own spreadsheet. This does two things, first - it forces you to intimately understand the entire flow of design logic and code requirements. You can get many good design examples from steel design textbooks.
Secondly, you then create a "software" product spreadsheet that can be formated just how you want it - and can be developed to be generic for future project uses.
The calculations for a straight, composite steel beam is not that complex.
Lastly, if you don't want to go the spreadsheet route - the RAM site I listed above does include a program called RAMSBEAM that is a stand-alone composite steel beam program, not a full-blown analysis program. If its not on their website - call them about it.