First off, you are very brave to have your own home web server. I had my own Windows one for about 6 months, but had to stop it because it was using up so much electricity - giving us a huge bill. I would suggest that you are better off with a dedi or a
VPS Hosting, for many reasons; including that you get full technical support.
Now, as for learning LAMP, I can suggest the following:
Linux (Ubuntu Desktop)
http://beginlinux.org/ - This
website hosting provides listings of courses in which you can learn Linux, Ubuntu obviously being one of the supported distros. From what I can see some of the courses are free, some of them certainly accept guest logins.
http://news.softpedia.com/news/How-t...wn-53104.shtml - This is a basic tutorial on how to use Ubuntu. It takes you through the basic settings and should get you on your way.
Apache
http://articles.techrepublic.com.com...2-5076696.html - This is a basic tutorial which takes you through the basic steps of configuring Apache.
http://httpd.apache.org/docs/1.3/howto/htaccess.html - This could prove an important tutorial as it takes you over the basics of the very important .htaccess file.
MySQL
http://www.washington.edu/computing/...l-install.html - This is a tutorial that takes you through the basics of installing and starting MySQL version 4.1 (some people are still running it.
http://rpbouman.blogspot.com/2006/01...ubuntu_07.html - This is a tutorial on installing and confirguring MySQL 5 on Ubuntu.
PHP
http://www.w3schools.com/ - This is the place where many developers first visit when they're starting out with a new language. This is also generally a good
website hosting to bookmark should you need to look back at it in the future.
http://www.learnphpfree.com/ - This is a free
website hosting where you can go and learn the basics of PHP.
Misc
http://blog.eukhost.com/ - Theres always the good old eUKhost blog full of articles fit to any purpose.
Books - There may be many good resources on the web, but I suggest that you go out and buy some books on the subject as they will have much more in depth information than anything that you will find for free on the web.