The mark I Sega MegaDrive looks absolutely lovely on top of the mark I Sega Mega CD and, what's more important, the combo allows for some pretty lovely (or at the very least pretty intriguing) early CD-based gaming and some absolutely classic 16-bit cartridge-based gaming.
To own such a set, you could bid on this Sega MegaDrive / Mega CD combo eBay auction. Consoles aside, you'll also be getting two controllers, the PSUs, the cables and 9 games on both CD and cart. The games include Sonic The Hedgehog, Jaguar XJ220, Cobra Command and Sol-Feace.
Seller ships to most places worldwide.