pdflatex code or binaries

Thank you for the prompt reply, I really do appreciate the speed here...
however it looks like all 3 links point to "pdfTex" rather than "pdflatex" files. I can't seem to find a pdflatex binary. One of the links mentions that pdflatex comes installed on linux (and I use it on linux frequently), so I would like to either find the source & compile it for os x or find a binary for os x. Any ideas?
thanks.

Hello,
I don't think pdfTex and pdflatex are the same, but I may be completely wrong and they may be the same. also, pdfTex doesn't even want to install correctly on my mac. (requires 'pdftex.fmt' to work)
Am I missing something here?
thanks.

also, TeX is not short for LaTeX...
http://mintaka.sdsu.edu/GF/bibliog/latex/principia.html
"LaTeX is really a set of macros for the underlying typesetting system, TeX, whose formatting commands are very low-level. LaTeX is intended to provide a high-level language to access the power of TeX. Unfortunately, it hides so much of what's actually going on that it's usually difficult to track down the problems that inevitably occur."

Great, thanks. MacTex worked.