One app I find indispensable on the Mac, although nothing to do with text/HTML editing, is 'Max', a CD ripper and audio format transcoder, it handles a heap of formats!

(I must confess, I have been using a Mac (Intel Mac Mini and Macbook) for over a year now, and I love it!)
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Peter.

"I spent 90% of my money on women, drink and fast cars. The rest I wasted." - George Best