Another thing to consider is, if you're interested in playing imported Mega CD games, you're better off with the earlier versions of the console if you're going to use a Datel CDX cart for example.

Personally, I'd go for a MD1, MCD1 - that way you'd be able to play imports with the cart, you'll have a headphone socket, the Power Base convertor & 32X will work with no problems and they're also cheaper to get parts for. At least in the UK anyway - MD2 cables are a pain to come by.

Hypocritcally, I'm using a Multimega at the moment to save space!