i think komplete will give you a full package
good drum program, sampler, synths and reaktor
Here Here to Komplete, only try searching around for a second hand version of Komplete 5, komplete 6 is a disapointment in my opion, yes they have upgraded to Kontakt 4 and yes there are more sounds in the libruarys but they have remove vital parts of the Komplete set - IE PRO53…
although if you have Arturia Prophet V is similar, but some awsome preset in the pro53 from NI.
Im still looking for a decent reverb, I tryed out the lexicon pcm plugins, but found them hard to use.