I'm quite happy with my latest OSX setup, and this is how I make my living.
Digital Performer 6 for the primary process, including all automation, stem work, plug-ins, routing out thru analog gear and recording back in (still not peak limited).
SoundBlade for final assembly, sequencing, EQ tweaking/balancing, final peak limiting, and CD-R/DDP delivery.
Peak Pro for occasional surgery or stereo file editing/manipulation.
AudioFile Engineering Sample Editor for format conversion
Apple's Waveburner as a backup alternative for quick CD-R generation
And for fun, there's Cubase/Nuendo, Logic, and ProTools.
(then of course, converters, analog EQ, compression, etc.)
DP6 is an absolute rock solid monster. I've been in it for years, and just know and love it. SoundBlade is finally getting pretty stable and the "desk events" are now working with version 1.3.4 (June 09). I love having my "mastered" song files still not yet peak limited. This allows me to tweak the files in the final SoundBlade environment with the final peak limiting and dithering there at the the final delivery stage. I haven't made the switch to using SB for analog out/in because I find there to be so much more I can do in a full blown DAW like DP6.
Brad Sarno
St. Louis, MO
www.bluejadeaudio.com