nothing professional by any means..
i worked for Microsoft doing tech support, so i know everything from windows XP and older inside and out..
still tweaking vista... havent tried windows 7 yet..
as for any other OS i have no clue, never was interested in Mac, and never had the time to use linux... but as far as hardware goes for any computer, i have learned alot myself..
the internet is very resourceful and you can learn anything...
- moving on to network, i have been doing all sorts of troubleshooting and setups @ work, as well as with all my friends and co-workers homes... so basically i am just a geek, with some back-up lol