Half-Life 2: Episode... 3?

The Borealis is what lead Aperture to RESEARCH the Portal gun.

They're tying in-- thank you, Lego. XD
My computer is 5 years old, 2 gigs of ram, and a 6800 geforce

If twi's computer can run it, most computers can too.. as long as they have a graphic card that isnt a generic one. (Use to run gmod on a 5800 geforce on a windows 98 turned 2k machine with 256 megs of ram.)

so its not a matter of if a computer can run it, it is how well and at what settings
I really need to get a hold of all of the other Half Life stuff. I never even finished the first one, and I only know a vague bit of the story.

Like, I know who Gordon Freeman IS, but not much else.
Meh. The first Half Life series is nothing big. You play as Gordon, Barney, Gordon again in some less-than-appetising graphics, shooting up aliens and soldiers and assassins.

Oh, and headcrabs. Can't forget the headcrabs.

Counter Strike began as a spin-off to Half Life. That's kind of how old it is.

Stick to HL2. It's FAR better.
Wouldn't I miss out on important story elements?

Besides, oldschool games are fun.
Lego's right on this one, too.
Just read the Half-Life wiki site's article on Black Mesa Incident and Half-Life.

Quote (Sora-Chan)

Just cause they are going to that ship, doesnt mean that the portal gun will be on that ship, Aperture Science was probably working on more than just the portal gun, so theres most likely more than just that for tech.

According to Aperture Science's website (Yes, they had a mock-up website for it), the only other thing Aperture Science was working on was Military-grade Shower Curtains. Given how the big-mysterious-ship did-something-possibly-plot-vital, I'd say it's highly likely that the Portal Gun, or another version of it, is on board.
Steve dont worry about the first story, hopefully later this year, like this fall, Black Mesa will get released. Its a Mod for the source engine that recreates the first game, but majorly upgraded, unlike Half Life: Source, which is merely a port.

Basically, all you need to know is that Black Mesa opens up a portal to an alternate universe, aliens pour in and then the whole world gets shot to hell.

And it's all this guys fault.

Awesome pic of the GMan.