Command Click a link to force it to open in a tab.
Safari is good since it stores all your passwords in your Keychain which can be viewed using your system admin password and it also displays the websites in your address book which Mail.app also uses.
Download Safari Enhance to turn on its debug menu.
http://www.lordofthecows.com/safari_enhancer.php
Another very good Safari plugin
http://haoli.dnsalias.com/Saft/
Use this Safari hint to outline page elements
http://www.macosxhints.com/article.p...ry=bookmarklet
Widgets on your desktop
http://www.macosxhints.com/article.p...50422172929402
or
http://www.versiontracker.com/dyn/moreinfo/macosx/26627
If you don't want to get Photoshop then install Gimp or even better MacGimp
http://www.macgimp.org/
FTP client
http://www.interarchy.com/main/
Good place to look for Mac software
http://www.versiontracker.com/macosx/
Multiple clipboards for you Mac
http://www.copypaste-x.com/
Fink and Fink Commander is very useful for installing X11 stuff
http://fink.sourceforge.net/download/
http://finkcommander.sourceforge.net/