If you need a variety of sounds and can get a good upgrade price on Rapture and DimPro that would be the way I'd go. Add a few "free" packs (like francesco's) and you'll have your palate covered. DimPro includes many orch sounds and the many acoustic sounds, plus a series of weird sounds (need Legiti?). Rapture covers most synths, plus a lot more organs than DimPro. You said you needed synths and organs, right? While Rapture might not be the best organ emulation, it does fine (I use the "Jimmy" a lot and Francesco's Farfisa is very good). between the two Cake synths you have a variety of organs, eps and acoustic pianos. Plus thousands of synth sounds that are easy to manipulate and once you know one synth you know the other. The samples and SFZ files can be used in the other synth, too.
The only cavet I have is both Cake synths are sharp, cutting sample engines. Which works, but sometimes you want a smoother, rounder VA sound. Alchemy is a nice complement. But you ain't concentrating on synths, so the Cake stuff ought to work fine for your purposes. If you wait until sale time, you can pick them up cheap.
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