I'm not sure whether its uber-cool to say I like Linux or not, but actually I do. And because I do, I wish Linux had more shareware/trialware. Let me explain this blasphemy (in the eyes of RMS anyways).
Linux in general has better text mode support than windows. A better shell (many better shells), better command line utils, better...
If you're looking for no fluff, all work kinda tools - look no further than the console. Most of these tools take up minimal resources and still give you a chockful of functionality, plus they're not that hard to use (okay maybe a little). All you need to be is a keyboard ninja.

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