PSX and EPSXE are really good...I have both
however I always use EPSXE with PETE opengl plugin 2.8 because games looks better....
I setup a 1600x1200 screen there....with texture fiilters and fullscreen filters+2XSAI..+ pixelshaders.......yes....that's nice
Just finished Spyro 1 and now Im playing Spyro 2 (great games!)
I use also "Eternal" sound plugin because is lot better that one included on EPSXE