Hi DIGITAL SCREAMS
I actually had the same question up here for a month ago or so, so check out those rreplies too (if you havn?t already)
I havn?t figured out what to buy yet though I have played around with both of them.
Alot of people are using the NL2, so some might say that you might get the same sound like they have?

(dunno about that)
but the Ion is much fatter I guess, so if you go for more overview and more authentic VA that would be the choice (hate that 8 voice polyphony though!

)
I found the knobs on the NL2 a little bad (Access could shurely learn them something there!) they are small and heavy to move (at least on the model I tried)......
I actually started to look at the G2 engine too (those 3 synth are all in the same price level here), so that could be a choice too, especially for me....
all those nice generators and FX and the idea of building a unique synth for each patch is nice I guess......
Anyone have any comments about the G2 (keyboard editions) or the engine?