I had lowly expectations of:
40 x EDCs -> 1000 Omega Marks
4-5 x Rare Salvage -> 1 Borg Neural Processor
2 x Prototype Salvage -> 1 Borg Neural Processor
+ diminishing returns when you convert anything more than 40 EDCs or 10 Prototype Salvage.
So I was pretty pleased that my estimates were in the right ball-park and that my decision to cash in most of my STF stuff for dilithium was correct.