[MichaelCrawford]

I use a Retina Display MacBook Pro, presently running Mavericks, with Xcode.

I own, but don't use a whole lot, a Core Quad Xeon workstation with 16 GB of FD-DIMM and a 2.5 TB AMCC 3ware hardware RAID, as well as a Blue and White G3 Macintosh, and a dual 133 MHz BeBox.

I prefer to use my MacBook Pro as it enables me to work from WiFi spots, for the most part cafes, as well as some all-night restaurants. I am self-employed; being able to work from a cafe enables me to be around other people during my workday, as otherwise consulting can get very lonely.