I've been looking for a HDTV friendly way of playing Coleco games for awhile now and I finally have it.
The Nt Mini was a bit out of my price range, but I was always jealous of those who got to play Colecovision in 1080p glory, but now with the Mega Sg via JB firmware there is an amazing 1080p solution for Colecovision at a great price of $189.99. I was looking at many other alternatives which even included original hardware and external upscalers, but I'm glad I waited. This saved me a lot of money.
I know it might be blasphemy for some of you Coleco aficionados here, but I have no problems playing Coleco games with my M30 2.4ghz controller. Having a wireless solution is so convienent for me, but I totally understand why you'd prefer using the original controller with its keypad which unfortunately is not compatible with Mega Sg.
Coleco games looks absolutely amazing on my 60" 1080p Plasma and there is no lag at all, what else could you want?
Right now I'm enjoying King's Valley from Team PixelBoy. What a great game.