Re: another Unix geek is born :D
Step 1, since you are using Windows 2000, get Partition Magic and make your partitions with this software. fips and some others are Okay but Partition Magic has a much higher success rate.
Step 2, make a partition for Unix after your Windows 2000 partition. I would suggest at least 1 GB of disk space if you can manage that.
Step 3, Go to http://www.linuxiso.org and get FreeBSD. I suggest FreeBSD over Linux for a couple of reasons. a) it is Unix and Linux is not. b) Uniformity c) FreeBSD is free, it is Unix, it has a ton of packages in the ports collection ready to make && make install && make clean :D
Step 4, Install FreeBSD on your partition
Step 5, Go to these sites and read/do/learn how to use Unix.
http://www.freebsddiary.org , http://www.bsdvault.net , http://www.freebsd.org/doc/en_US.ISO...ooks/handbook/ , http://flag.blackened.net/freebsd/ , http://www.instinct.org/~pgl/freebsd-links.html , http://unixgeeks.org/main.html . Those should get you started, I am sure you will pick up some great links of your own along the way.
Step 6, Take the plunge all the way. That is, try not to boot into Windows for 30-45 days. Learn how to do everything you would normally do in Windows on your FreeBSD install. This will get you comfortable within Unix quickly so you can focus on learning the advanced stuff.
Step 7, join some FreeBSD mailing lists like freebsd-newbies, and freebsd-questions. They are a fantastic way to get help. I think you will find that FreeBSD users on the whole are more compitent in using/configuring/admin a machine than Linux users. /* no offense to Linux users, I am one too */ You will find it hard to stump subscribers of these mailing lists. If you are interested in FreeBSD/Unix security subscribe to freebsd-security.
CAUTION: if you join freebsd-hackers, know that in the Unix world this has little or nothing to do with security, freebsd-hackers is where kernel/device driver programmers discuss the development of new ideas for upcoming changes in FreeBSD Current/Release/Stable etc. If you ask *hacking*, *cracking*, or questionable security-ish questions you will most likely get flamed and or banned.
hope this helped.
P.S. a lot, if not most of the software commonly packaged for Linux is also available for FreeBSD. Just look in /usr/ports, when you find a package you want to install cd into it's directory and do
`make && make install && make clean'