The snare sound is based basically in two effects: compression and reverb.
First, I use the compressor with this aproximated setting:
Threshold: -25
Ratio: 2.5:1
Attack: 25 ms.
Release: 500 ms.
Then, I use the reverb. I use Rverb form Waves. I tweaked a bit with the preset called "empty garage". It is easy to obtain a natural sounding reverb with this preset or any other with this plugin.
I think that doing this it's easy to get a very close sound to the mine and it is usable with any othe snare samples. The slynare samples is in the FTP in this forum.
Hope it will be usefull!