Computers, equipment, software, gadgets: you're into it all, and you just can't get enough. And how great is this? You can monitor you carbon footprint, too. For you pc fanatics, check out stardock's tweakvista. It tracks your computer's performance (and it comes in a free version, too). And you apple freaks? Take a peek at global warming footprint counter: it displays green headlines and tallies the planet's carbon footprint.