Those ones from DinoPC look pretty good. Looks like they're using decent components, and the prices are not taking the mickey.Rog: If I can avoid building one myself I would be happier. I don't need it for anything other than playing Elite.
If you were to go for something from there hovering just under £1000, I reckon you'd be pretty happy.
The "Dark Reign" does look good value, but their customise/specify your own system is there if you want to roll your own.
http://www.dinopc.com/shop/pc/custom.asp
Personally I would go with an Intel Z87 motherboard, i5 4670K CPU, mayne spend a couple of quid on that Zalman cooler, 8gb 1866mhz RAM, 1TB disk and the graphics card of your choice - maybe the GTX 770 4GB.
You also get to choose your OS: win8 or win7.