How to Make a Phylogenetic Tree

I wanted to cluster some genetic haplotypes I have into a phylogenetic structure to look for similarities between haplotypes.  I stumbled across the program MEGA.  Molecular Evolutionary Genetics Analysis (MEGA) is a relatively easy to use program that offers a wide variety of cluster building algorithms.  The input data format is relatively easy to generate based on the provided examples and the output trees are quite customizable.  Check it out for yourself.