Gears of War features ugly aliens invading Earth and brave soldiers making them regret that decision.  As bullets fly, aliens come out of holes in the ground throwing grenades and helicopters fly over head dropping in troops, etc.  It's beautiful chaos thanks to the wonderful controls and smooth graphics.  Oh, and don't forget one of the most unique aspects of the combat in Gears of War… your machine gun has a chainsaw attached to it.  Yes, a chainsaw.

The replay value of Gears of War is also phenomenal, as friends will no doubt want to play against you in split screen action or online against several people at the same time.  And while the second installment of the Gears of War franchise is already out, there are still plenty of people playing the first title online.  Who knows?  By the time you finish the first one, maybe Gears of War 3 will be come out and you can pick up Gears of War 2 (also awesome) for cheap.

Rated M for Mature.

Call of Duty 4: Modern Warfare | Playstation 3, Xbox 360, PC, Mac | $40

This is the last first-person shooter on the list, but easily one of the best of all time.  The Call of Duty series has been a fan favorite since the first title, but none of received the emphatic applause that Call of Duty 4: Modern Warfare was awarded.  In fact, after Call of Duty 5: World at War failed to be everything its predecessor was and more, Infinity Ward chose to make a second Modern Warfare game launching in November.

What does this mean for you?  It means you can pick up a high quality game for cheaper and cheaper the closer it gets to the release date for the second installment.  Even well after the new title comes out, tens of thousands of players will still be playing Call of Duty 4: Modern Warfare online across various modes of gameplay.  This is where the game truly shines.  The online multiplayer experience of Call of Duty 4 is some of the best ever.  The maps are strategic and detailed, the explosions loud, and the field populated with all levels of player aptitude.  The online play is both addictive and endless.

Rated M for Mature

Boom Blox | Wii | $25-$30

Party games are always in demand.  People come over and you pull out a bowl of chips, some dip and hopefully your Wii.  Throw in a copy of Boom Blox and the party might go a little longer than expected.

Steven Spielberg made this game.  Yes, the same guy who made E.T. made this game.  Is it anything like his movies?  No.  But is it good?  Yes.  Boom Blox is a puzzle game where you throw, grab, yank and pull things using the Wii mote to rack up more points than your friends (or reach a goal in first player mode).  The main gameplay involves you throwing baseballs and bowling balls at stacks of blocks, knocking them off pedestals for points.  You also pull blocks out of structures while being careful to not make them fall.  In this mode, it benefits you to be a tad reckless, causing your friends to have to pull blocks out of a structure a million times more wobbly than it was for you.  It's a lot like the block-stacking game, Jenga, with added craziness for good measure.

Boom Blox features over 300 challenges (levels), so the chances of you getting bored with repetition is just about impossible.  In addition to the plethora of blocks to throw about, you can even create your own levels for even more replay value.  Buy this game and throw a Wii party, it'll be worth every cent.

Rated E for Everyone