I have an HDTV (LG 32LV5300) and a Model 2 Mega Drive, and it works fine. All retro consoles I own (MS, MD, Saturn, NES, SNES, N64, PS1) work perfectly fine, except the Master System (the sound works, but the picture flashes slowly, like it's there, except the screen is black every other second). Good thing I bought my Mega Drive with a Master System Converter
About Model 1 or Model 2, from what I heard, the sound is better on Model 1. Every time I turn on the Mega Drive (or when there's silence during the game) , I hear a buzzing sound, and from what I've read on the internet, this is a problem that only Model 2 Mega Drives have. I can't find any info on that right now, but thought you should be aware of that.
About running foreign games: I got myself a Game Genie. Since most games weren't region locked back then, all you will have to do is play it through a Game Genie without putting in any codes (and some of later games do require codes to bypass the region detection) . There's also a way to mod your console so that it would play games from any region, but it looks hard (at least for me, who only used a soldering iron ONCE in my life) . I myself would do it only if I bought a second Mega Drive beforehand.
I buy games mostly on a French website (priceminister.com) since I live in France
, but sometimes the good ol' eBay proves itself useful. Most games I buy are around 15€ (with shipment) , but the price depends a lot on the state of the game, whether it comes with a box or not, how rare it is etc.
Oh, and a word of precaution: if you buy games that save using batteries, chances are that by now they are either dead or about to die. I recently bought Super Mario World, and three playing sessions later, the saved game was gone.
I hope this helps.
This post has been edited by SaniOKh: 18 February 2012 - 03:57 PM