well i don't know what is called as normal gaming pc, and alienware desktops are very costly, i can get better for much lesser price. They charge b'coz they are a brand, brand does nothin, just cost u more money.

Well i got i7 -2600k @3.40 GHZ

8GB RAM

1TB HD

56OTi GTX nvidia card.

Games run very very smooth on set to high, or ultra high in some games.

Cost me around 1000$. I don't think alienware will give u any better specs, may be they'll just add up more HD, or better graphics card. But believe me 560Ti GTX is all you need for next coming 10-15 years.