New Computer

Hey guys, i'm looking at getting a new computer soon, or at the end of the month ($1000 in tax to claim back <3) these are the specs:

Brand: HP
Model: HPE-575a
Processor Processor Brand: Intel
Processor Type: Core i7
Processor Model: 2600
Processor Speed (GHz): 3.40
Memory Installed RAM (GB): 8
Ram Type: DDR3
Features Digital Media Cards Reader: Multi-in-1 Card Reader
Hard Drive Speed (rpm): 7200
Graphics Card Brand: AMD
Graphics Card Memory (MB): 2GB
Graphics Card Memory Type: Dedicated
Graphics Card Type: Radeon HD 6570
IEEE Firewire Ports: 1
Networking: Gigabit Ethernet
Optical Drive Format: DVD Burner
Optical Drive Type: Blu-ray Burner
Other Ports: HDMI
Processor Brand: Intel
Processor Model: 2600
Processor Speed (GHz): 3.40
Processor Type: Core i7
Installed RAM (GB): 8
RAM Configuration: 2 x 4GB
Ram Type: DDR3
USB Ports: 6
Networking and Internet Wireless Networking: IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
Disk Drives Hard Drive Size: 1.5TB
Interface Type: SATA
Audio Microphone: External
Graphics and Video Support TV Tuner: Digital
Connections and Expansion Video Ports: 1 x DVI, 1 x HDMI, 1 x VGA
Operating System: Windows 7 Home Premium

:/ i need to update my graphics card and get more ram.