Which components produce a convincing 3-D image?

Hi. Like many of us I've been through entirely too many pieces of quality gear and I've managed to get close to what I think I should be hearing. However, I've read some comments on Audiogon by folks who claim they feel like they can "reach out and touch" the performer, their systems being so convincing. Keeping in mind that one's listening room can can make or break a system's ability to produce a convincing image I would like to know which components, whether they be amps, preamps, speakers, CDPs, cables, whatever, have contributed the most to your system's ability to provide that illusion of being there with the performers.

I'm currently running two sytems:

For two-channel A/V: PMC FB-1 speakers, Sim Audio Moon I-5 integrated, Sony DVP-S9000es, Silver Audio Bullet 4.0s, Analysis Plus Oval 12 shotgun bi-wired 8' speaker cables.

For two-channel stereo: Tyler Linbrook Monitors, McCormack DNA-125 amp, Marantz SA-14 SACD, Creek OBH-11 volume control, 2 pairs Homegrown Audio .5M Silver Lace interconnects, AudioQuest AQ-8 bi-wired 8' speaker cables.

Thank you.