i got the case and i say it is kickass, with things like a door on the backplate for the mobo so you can install GIANT coolers w/o removing the mobo from the case is great. Drive bay placement is kinda crappy but they are uber for airflow (you want to have some cabling skills, some, not a whole lot). ONLY downside is that its a full tower case and I can't put my feet up on it like a mid tower, but most people seems to think that is bad for the computer or something, so that may not be an issue for you (if it is, maybe the 922 Mid tower is a nicer choice, but lesser room may be lesser good, esp to airflow if you got more stuff in there)
consider picking up a nice cooler, like the thermal right ultra 120 extrme (TRUE) or a core contact freezer or if you want nice colours and beauty rather than rock solid performance get some zalaman, they perform far better than the stock of anything (lesser than the other high end expensive stuff like the TRUE or CCF), and looks nice if you do get a Haf 932 since its got a window there (my TRUE looks like a huge block of metal on there, a nice zalaman would make that thing look far more pretty and may help me pick up chicks 😀)
the 2gb 4890 is kinda gimmicky imo, 1 GB is good enough, or else go up the scale and get some CF/ SLI setup (nvidia stuff commands a price premium, and they are great at the highest end, but maybe not here) , but that may mean i7 becoming a better choice.
DDR3 is the future, may as well get that and if you want to upgrade/replace in a few years it would be easier to find. If it isn't too expensive tho, the prices of the ram it self should be the same, but mobowise, I have no clue
that PSU should be nice for this system.