I have never played an MGS game save for about one hour I spent against Twin Snakes on the Gamecube years ago (I took a lift, went through a small snow area into that building and through a vent but I could not get any further, I had no clue about what I was doing).
That said, I have treated myself to reading the last 20 or so pages in this thread and I am really amazed about how little I am understanding and how convoluted this whole series is. I am really tempted to play the games during the xmas break and january, I actually have all of them except the original (I sold that copy of Twin Snakes). I have to check if MGS can be bought on PSN for the PSP Go (it should be there I imagine). Then the other 4 games on the PS3.
Buy MGS1 on PSN;
Buy MGS HD Collection for PS3;
Buy MGS4 for PS3.
Have the best gaming session ever! You can easily buy the entire collection for less than 60 bucks.
Order of playing: