I'm a sysadmin for Sentry Data Systems. I do linux and clustering and networking, and enjoy instigating a good STONITH deathmatch when I get bored.
Work-wise, I'm a giant fan of the k.I.s.s. principle - keep I.T. simple, stupid. Don't make things any more complex than the features you need.
In my spare time, I renovate houses and ride herd on a pack of dogs with extreme mental issues. My background and career are both in systems. I look at systems, analyze them, and use them or make them better. I like DIY home stuff because the systems are simple and it's rewarding to figure 'em out and use them. How do I know the things I do? We have this saying in my group of friends-who-renovate-houses: "Ask me how I know." I have probably been there, broken that, ruined the other thing, and had to figure out how to fix all of them.
On my own blog, see my:
"It’s not enough to be aware of the domain you’re working in, you need to understand it. Noticing things and being curious about how they work is the single most common trait I see in creative people. Once you can break the components down, you can put them back together into something brand new." - Seth Godin