Gaming htpc parts and spec help £600/ $900

Hi, am thinking that its about time i replaced my 6 year old htpc and was want to try and build my own this time (have never built a pc before).Have no idea realy what parts i would need as i like to play games online and need a decent graphic card to do this, the game i play most is called entropia universe and has the following specs to play at high to very high ( i currantly play at medium settings)
Below are the system requirements for each Graphics Quality option.

Very High Settings
Internet Connection: ADSL or better

Operating System: Windows XP, Windows Vista

Computer Processor: Intel I7 / AMD Phenom II

Computer Memory: 4096 MB RAM or more

Graphics Card (with latest drivers): NVIDIA GeForce 285 / ATI Radeon 4870 or better

DirectX: Version 9.0c or later

Sound Device: Direct X compatible sound device

Screen Resolution: 1024 x 768 pixels

Hard Drive Space: 10 GB of free space


High Settings
Internet Connection: ADSL or better

Operating System: Windows XP, Windows Vista

Computer Processor: Intel Core duo or AMD Athlon 64 X2 Series or better

Computer Memory: 2048 MB RAM or more

Graphics Card (with latest drivers): NVIDIA GeForce 8800 Series or better / ATI Radeon 2900 series or better.

DirectX: Version 9.0c or later

Sound Device: Direct X compatible sound device

Screen Resolution: 1024 x 768 pixels

Hard Drive Space: 10 GB of free space


Medium Settings
These requirements should be considered the minimum system requirements for Entropia Universe:

Internet Connection: ADSL or better

Operating System: Windows XP, Windows Vista

Computer Processor: Intel Pentium 4 2.8g hz or AMD Athlon 64 Series or better

Computer Memory: 2048 MB RAM or more

Graphics Card (with latest drivers): NVIDIA GeForce 7800 Series or better / ATI Radeon 1900 series or better.

DirectX: Version 9.0c or later

Sound Device: Direct X compatible sound device

Screen Resolution: 1024 x 768 pixels

Hard Drive Space: 10 GB of free space

I have a case i can use what i bought for my old htpc the antec fusion remote veris black matx media case and have a corsair vx450 psu that i would reuse as well as well as a keyboard and mouse. would also need a duel tuner freeview card or duel tuner HD freeview if possible, would need a 500GB hard drive as well and windows 7 os. the rest of the spec i have no clue about and this is were i need you help, would like to play my games at high to very high settings if possible. have about £600 to spend on this build



Approximate Purchase Date: next 6 weeks


Budget Range: £600 / $900


System Usage from Most to Least Important: gaming, watching tv,surfing the internet, watching movies


Parts Not Required: keyboard, mouse, moniter, speakers, have a antec fusion veris remote media case and a corsair vx450 that i will reuse


Preferred Website(s) for Parts: any british websites


Country of Origin: england


Parts Preferences: by brand or type, none


Overclocking: Maybe in the future but not essensiall


SLI or Crossfire: no


Monitor Resolution: have a grundig 26 inche lcd tv 1368x768


Additional Comments: would like to be able to get at least to high settings on most of the games i play

thanks for any help you can give this newbie to the pc building world :-)


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