i use shortcircuit 2 sampler ( free ).....you sample anything that you fancy...from any source....save
as an instrument and load into cubase as you need them...you build up your library bit by bit...i got ripped off by tascam ( withdrawing support for giga3 )...i would never use an instrument or system that has to be activated via a website again
it can be a bit long winded but once you get it sorted theres no being p***ed about by sh!tehouse softsynth/
instrument vendors
the thing ive found is that you only need two or three good basses/bass drums/snares etc to fullfill the need for
most conventional tracks... buying synths and softsynths with billions of sounds is overkill
if you play in a band the bass drum/bass/snare etc is the same for every song you perform so i use the same philosophy ( had to look that up ) when using cubase
i play in a duo doing covers and usually do 20 songs per gig using custom backings.....theve all got the same BD/sn/bass etc
there are good freebee instruments knocking about for starters though....goto
http://www.hitsquad.com/
http://www.vst4free.com/