I've been using a Retron 3 for a while now, but I had decided to upgrade to the Retron 5 a while back. I only recently plugged the system in due to lack of hdmi ports. eh, my main television only has two, so I have two hdmi selectors with infrared receivers to select channels along with two boxes to bypass hdcp. :p anyway, I'm curious about the difference of using hdmi as opposed to composite between each retron. plus, with the retron 5, u can install the genesis power converter which allows u to play sega master system games as well. I didn't realize it, but I need the wireless controller to set the system up. the original box, with controllers, is in my bedroom where my fiancée is sleeping. damn...I was hoping to game on it tonight. anyone have any experience with the system?