It's time to upgrade, and I've been teetering back and forth between these two programs. I know they're both solid applications. I know the price difference. I'll be running it on a dual 2.0 G5, 4GB ram, etc...etc... and a G4 iBook for some mobile tracking (which will get dumped to the G5 for any real work. MOTU interfaces (896HD some times, 2408mkIII-24i/o other times) Mostly I'm concerned about features. I know Logic comes with an assload of plugins, virtual instruments, and all that, and I also know that for the same money, I can get DP4 and some third party stuff, but will it compete with Logic without breaking the $999 price? I have my other 3rd party plugs that I like (using PTLE right now) and am not worried about those, they all have AU versions. I don't have any virtual instruments (other than reason adapted, which I use as a glorified metronome mostly). What I'll be mostly be doing with it is recording rock bands, some voiceover work. Typical recording studio duties, nothing outrageous that I can forsee. I also understand that with Logic I can install it on both systems, and just switch the USB dongle to whichever I'm using at the moment. Will this be a problem with DP4? I plan to just keep things on FW drives for switching computers. Thanks for any input.