Re: Alienware or Falcon NW or HP blackbird?
Go for the blackbird. Although you DO pay a big premium as opposed to even getting something from ibuypower.com or whatever, I guess in your case it might be worth it (Customer Service, big brand name, etc.)
A friend of mine has two blackbirds in his office and they are beasts. No problems either.
As far as hard drives go, the only way two hard drives will be better is that you'll have more storage. If you're into INTENSE gaming, I'd recommend a 10,000RPM main drive (such as the Western Digital Raptor) to run the games and Operating System off of, and then a secondary storage drive, like a 500gb hard drive of some sort.
A reliable gaming PC for YOU should last you for years with optimal cooling, great performance ALL the time, and a company that stands behind it in case something goes wrong.
My vote = Blackbird.
Intel Q6600 @ 3204Mhz ~ Tuniq Tower 120 ~Corsair XMS2 5GB ~ WD VelociRaptor 150GB Main ~ WD 1TB Black ~ EVGA 8800GTS 640MB ~ 7 Home Premium (64-Bit)