If you throw in a little more cash, you can get a more juicy GPU, and might want to bump the PSU up aswell then, and/or get an SSD for booting and a little bigger HDD for storage.
I'd try a 560, 6950 or if you are willing to spend more a 6970 (there are versions of the 6950 that can be softmodded into a 6970!) or 580. But that's all up to you. I doubt Star Wars will require all that. I'd recommend a 750w minimum PSU for that.
I see that the motherboard is crossfire compatible, you could look at that. Do note that I have no experience with dual gpu setups so I won't be able to help you out with that :/
And of course, as Rish said: monitor, mouse/keyboard (I've been using mid-end logitech stuff all my life and never found myself to need any of that Razer brand stuff), WiFi network card if necessary, extra cooling (case allowing, of course), SD-card reader, etc.
I'm pretty convinced you won't need a faster CPU or more RAM. Throw in a blu-ray reader/writer (afaik they are compatible with cds and dvds!) for fun, instead of the cd/dvd