Grad Students Represent: Note Taking / References on OS X

My new MacBook arrived last week. As I am beginning a doctoral program in the fall, I'm interested in knowing what others are using to (1) take notes on the Mac, and (2) start building a reference or bibliography for a dissertation.

For note taking, I have Googled up quite a few, including:

And for references/bibliography building, I have heard about Endnote.

Ultimately whatever I choose I want to be able to stick with for my entire program so I'm not worrying about compatibility issues, etc.

Thanks in advance for your thoughts!!

Scott

OmniOutliner Mori Bibdesk for references (or Sente...

OmniOutliner
Mori
Bibdesk for references (or Sente or Bookends; I'd avoid Endnote)
DevonThinkPro
Tinderbox (expensive but supposed to be the Photoshop of writing)
Textmate + LaTeX for writing
Freemind (if you want to do visual mind-mapping)
Papers (looks very interesting for references and notes but is very early in development.)

...And MOST important
a good BACKUP scheme