Need updates? Seeking help for (gasp) a Mac gone bad? And just what the heck is a Type 2 or -36 error anyway? You might find at least some of the answers you're looking for in this handful of links listed in no particular order. No endorsements or guarantees, but hopefully you'll end up smugly satisfied with any of the web sites below.

Xlr8yourmac - http://www.xlr8yourmac.com/
Site for hardware upgrades and information.

Macfixit - http://www.macfixit.com/
They just went to a pay scheme to browse the archives, but a good place to keep up to date on bugs, hardware problems, and other Mac news.

Macintouch - http://www.macintouch.com/
A site similar to Macfixit, news and information.

Lowend Mac - http://www.lowendmac.com/
This is a great site for those who prefer to use "mature" hardware.

Maczealots - http://www.maczealots.com
Practical, in-depth information on many Apple products on the market today. They also provide tutorials on various Mac related topics.