So, of the various plugins listed at http://pimpmysafari.com/, I now have:
Saft, full version. Gives me session saving support (w00tage. no more OMG, I just accidentally quit out of Safari and lost TWO whole windows of tabs that I was working on / reading.)
I don't know if it saves all the tabs in multiple windows though... need to test that.
PDF Browser Plugin and Word Browser Plugin. Yay, I can view PDF and Word now, la la~
Taboo which prompts me before I kill off Safari / close a window with multiple tabs.
DownloadComment so the internet location of a downloaded file gets placed into the comments of the file.
GrowlSafart - emits growl notifications when downloads finish, and when RSS feeds are updated.
Safari Extender tab saving abilities in the contextual menu... may not use this over time... ^^;;
SafariStand allows for editing source code and instant refreshing. I think. Although that might be something else that's giving me that ability.. ^^;;;
Safari Enhancer to enable the debug menu and disable the cache...
AcidSearch for uh... I don't know what it does anymore. I think it sits in the Google search bubble thing and annoys me a bit once in a while when I press down... ^^;;
Fiwt find as you type. Good stuff. Lacks a GUI config window, but hey, it works, so I'm not complaining.
Sogudi - not sure what it does....
SafariSource - enables syntax coloring... and possibly editing.. .hum.
WebDevAdditions enables options for web developers.... 'cept I don't know what it does yet. heheheh.....
Of all of the above, I think Saft and SafariStand will be the most useful. Possibly one of the source-editing-things too. Not much else though...