I used Logic 4.2 Platinum, but that friggin thing crashed very 4.2 seconds. You wouldn't believe. It did it alot, so I reformatted and redid EVRYTHING, (including trying another soudn card), and it just hated me. Hence, I now use Nuendo. I like it more, and is ULTRA reliable. One thign I miss is the REALLY cool plugins Logic had. mmm..... BitCrusher..... I loved that thing. If oyu wants ome weird ass noises, run a guitar through a ring modulator, then the bti crusher, then a flanger. People thought mine was a dying whale at first. Very interesting indeed. I knew Logic really well, and still do (after 2 years of use, despite the crashing), if you elarn Logic, you shouldnm't have any trouble learning the other software packages. It took me like 15 minutes to figure out Nuendo. I also love Nuendo's audio mixdown function. So much better then the Bounce in Logic. No more realtime, it does it in RAM, so you don't have to worry at all about latency and insufficient hardware issues.
Jake