Doc-Z, it all depends on your goals and tastes as to whether 16GB is overkill. Yes, there comes a time of deminishing returns or it may even be like 'picking fly shit out of pepper'....hard to do .... no big returns.... but it feels good when it works for you!!!!

To satisfy yourself on this you could listen to some of the demos available at the various Sample Developer's web sites, e.g., Bardstown Audio, VRSound, VSL, EastWest, and so on.

Regarding LiveSynth Pro you could email me at flr@mts.net.

Should you decide to go down the soft arranger system road, it may be best to convert your styles to the GM format (sounds and drums) and then you can use other samplers to play GM Wavetables....and there are many, many choices for you (samplers & wavetables). I recommend it and you will never turn back....but the drawback is that the control surface is not as good as with a hardware based arranger system but the quality and flexibility of a software based system makes it all worth it.

Also you need to have a good dose of patience to make all this work for you. Plus it takes a fair amount of effort up front to put it all together and make it work. Once you got it....it is easily as reliable as any hardware based solution. To help with reliability I use two computers (one for editing and testing and general use and the other solely for playing music).

This is just my opinion....an old fragile man's opinion.