Have you tried to learn how to effectively layer samples to make new sounds?
On the synth note, if you're on Mac, I can definitely recommend DrumSpillage as a drum synth. 11 modules to load individually into it's 16 pads and lots of parameters for each. And it's 33$ off until Thursday
![Smile :)](./images/smilies/icon_smile.gif)
It doesn't have a built-in sequencer (I prefer this myself actually)
www.audiospillage.com
There's a free version called MiniSpillage.
I slice sounds made with DS out into Studio One's browser, then right onto Nerve's pads and haven't been this happy doing drums in, well, ever.