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Um, you do realize 2006 has been over for nearly three years, don't you?
Moving on, I would very much recommend "Uncharted: Drake's Fortune" and then "Uncharted 2" when you finish it. Both games are totally excellent. They're unfortunately both fairly short (I beat the first one in just under nine hours, and I'm 68% of the way through the second one after roughly the same time), but the original makes up for it in sheer cinematic excellence and in only being $30 now, and the second, while having everything that made the original great, also has highly addictive online multiplayer added into it.
If you're looking for some inexpensive games to build your collection with, I would recommend "Mirror's Edge," "Virtua Fighter 5," and "The Orange Box," all of which are only $20 new. "The Orange Box" is by far the best deal with five games on one disc - it took me eleven months or so to finish all of the beatable games (those being "Half-Life 2," "Half-Life 2: Episode One," "Half-Life 2: Episode Two," and "Portal"), and "Team Fortress 2" continues to be one of the very best online multiplayer games ever. Unfortunately, the PS3 version has problems that will never be fixed since EA did a terrible job of porting it and seems to have forgotten completely about its existence, but if you're like me and stuck with a computer that won't run any of the games included in it, the PS3 version remains an excellent deal.
Be sure to download lots of demos, by the way - it's a great way of trying games out for free. If it turns out you like a game, you can buy it; if you can't get it, the demo can entertain you until you do; if you don't, you won't have wasted any money on buying or renting the game.