Definitely get an SSD. Lenovo has a pretty good deal on the Y400 if you're getting a gaming PC. I know the Alienwares seemed awfully expensive when I was looking at them with a buddy about a month ago.
IdeaPad Y400 14" Laptop | Shop | Lenovo | (CA)
Would recommend an Intel- or Marvel-controlled SSD as I've had fewer problems with them. Little pricier, but more reliable.