I used to be a Metal Gear fanatic and owned a number of different Metal Gear Solid figurines from Medicom, McFarlane, and Yamato. That was a decade ago, mind you, and I understand that many more have been released since then.
Although I sold all of the aforementioned figures, I've considered repurchasing my favourite characters, namely McFarlane's Revolver Ocelot (Series 1), which remains my favourite plastic interpretation of the character to this day. Good Smile's Solid Snake is tempting as well. I would be thrilled if they were to release additional characters from MGS2.