Even though OS X (Mac) is a Unix based system, it is a little different than other Unix based systems in ways that might matter for the administration of a web server. Johannes Truschnigg offers us Three reasons why GNU/Linux is better for Web servers than OS X. They sound reasonable (but not bone chilling horrific or anything) to me.
Echoes reviews Eleven Video Players for LInux.
And Jody Gilbert reviews Top 10 Linux Financial Tools. I point you specifically to one of these:
I start off with this application simply because it’s my financial application of choice. Gnucash is released under the GPL so it is fully open sourced and is available for Linux, BSD, Solaris, OS X, and Windows. Gnucash features double-entry accounting, stock/bond/mutual fund accounts, small-business accounting, customer/vendor/job invoicing, QIF/OFX/HBCI Import/Transaction matching, reports/graphs, scheduled transactions, and financial calculations. Gnucash is incredibly easy to use and handles multiple accounts. Importing QIF files is simple, and entering transactions is intuitive. Gnucash can export to TXF format for tax preparation programs.