youve got pretty much a kick *** system bro...good job.
i suggest getting Waves Gold Bundle Direct X plugins...kind of expensive, but TOTALLY worth it...the compressors and eqs just rule!!
also, like you said, good big, loud monitors are a must too...im in the market for monitors too, so i cant really recommend anything...yet.
as far as Neuendo...dont bother...youve go Acid Pro 3. So youre good to go....that programs is EXTREMELY powerful...people overlook the fact that it can do just about everything...cept for the whole Midi/VSTi thing.
Personally, what i do is...do everything in Acid Pro 3 and if theres some Midi/VSTi (oh how FM7 does rule!!!) stuff i wanna do, i open up Logic Audio Platinum and just record that and export it to a Wav file, then open it back in Acid Pro 3.
its that simple
Mackie 1202 VLZ Pro Mixer
Nord Lead 1 Keyboard
Casio HT-700 Keyboard (old skool!)
Ibanez GAX 7 6-String Guitar
Zoom 505 Effects Pedal
Digitech GSP 21 Processor
Roland VP-70 Voice Processor