Yes.
Honestly all Valve games are like child's play on it. The 260 can run those games with one hand on the wheel.
By the way, $300 is a bit pricey. For that price you should be able to get a better card.
I know, it is really pricey... :(
Still, I will check the electronics store beside PC World, see if I can get a better card there and if my mom INSISTS on having PC World install it, that's her loss of 50 euros, not mine.
Ironically, PC World had an awesome gaming PC not too long ago yet they have only 260 GTX graphics card as their best Nvidia one.
Also, thanks for all your help, and just one more question:
Will Portal PRELUDE run fine on it, as well?
It noms up more graphics usage than normal Portal.
And as ONE FINAL THING TO SAY, I WILL be using the graphics card I buy for Portal 2 when it comes out.
Oh well, I guess it won't matter, as I will probably still be playing Monster Hunter Portable 3rd by then and/or have GMod.