Here are some drumsets that I've sampled myself:

sampled in 44,1kHz with the use of RME's Fireface 800 Interface:

Kawai K4
Korg 01W
Roland E10

sampled in 44,1kHz with the use of Focusrite's Saffire Pro 24 Interface:

Roland U110 sets
Roland U220 sets

Best regards
Patrick