Help me with my 2009 Gaming PC

well right now I have a laptop Acer Aspire 5003. its not fit for gaming as the specs are :

AMD Turion ML-32 1.8 GHZ 512 KB L2 cache.

15.4 TFT

120 GB HDD

2 GB DDR Ram

760GX Mirige Graphics 2

my dads Desktop is what I play my games on the specs are this

HP pavlion a1357c

AMD Althon X2 4200+ 2.2 GHZ 939

Thermal Take 500 watt PSU

ASUS motherboard

BFG 8800 GT OC 512 MB GDDR3

2 GB DDR ram 400 MHZ

HP vs 19 LCD.

The question is since I will want to play PC games. I will not have space for a desktop or DIY desktop. SO I will need to get a laptop.

I will have about 1,500 to 2,000 to spend on a laptop for gaming on PC. The question is which one? I do live in the USA

HP

For $1500-2000 USD http://www.newegg.com/Product/Product.aspx?Item=N82E16834220417

For $1499 USD this http://www.newegg.com/Product/Product.aspx?Item=N82E16834220416

well I forgot , since I play with a 8800 GT what Laptop GPU would be good? What I want is to get a laptop GPU that will play every game, and something with will have all video and HD video decoder. So give me some advice on what Laptop would be good in my price range?Neubauer4