Java developer planing to buy Mac
For what it's worth, many of the applications running on GNU/Linux are also available for the Mac. I use Eclipse and Git routinely on a Mac. Since I'm still on OS X 10.5, the first thing I did was to set my default JRE version to 1.6 (Mac bundles 1.4, 1.5 and 1.6), since the default setting is 1.5 (not sure if that's still the case with Snow Leopard).