Thanks everyone for your terrific advise.
For my budget the AMD A10K CPU definately looks my best bet and i can always add a HD 6670 graphics card to use in Hybrid Crossfire, could anybody give me an idea of what kind of performance boost i would get with that?
I think it's worthwhile going for Patriot Viper 2133 MHz ram and overclocking it upto 2400 MHz as the onboard IGP really gets performance increases with faster ram.
Not really into glossy screen monitors though so would need to spend a bit more on a matte anti reflective screen monitor if they cost more, not sure.