I use...
Use this use that.. Use your heart, and it will sound real.
I use an audiophile usb soundcard, Studiomonitors KRK Rockit 5, Microkorg synth, Terratec Midi Master USB keyboard, Les Paul '79 guitar, Cubase, Reason, Elektrik Piano, B4 Organ, Guitar rig, Pro 53 synth, Arturia midimoog...