Primary: Thinkpad W500. Core2 Duo T9600 (2.8 GHz, 6M cache), 4GB memory, 15" 1680x1050, Ubuntu 10.04. I only have a couple complaints about this machine. The bi

Primary: Thinkpad W500. Core2 Duo T9600 (2.8 GHz, 6M cache), 4GB memory, 15" 1680x1050, Ubuntu 10.04. I only have a couple complaints about this machine. The big one is that the screen can't compare to the 1600x1200 IPS panel of my old T60p. Yes, I did prefer the 4:3 aspect ratio. The audio ports being located on the front is also annoying. Secondary: Mac Pro (borrowed). Two dual-core Xeon 5150s, 5GB memory, headless most of the time. I use this machine to do the heavy lifting for my text classification work. My experimental data set fits in memory on my laptop, but leaves uncomfortably little free space. It also makes my lap warm. The Mac being about 50% faster in practice than my laptop is a nice perk.