Well, the mon has a 5ms refresh rate so, you should not see any ghosting during games and action movies ... 6ms is the "cutoff point" so you can go with 6ms or less. 2ms would obviously be better but I'll bet the price is right.
5770 should be a good match and it has 1GB (good) and it is a Saphire (great!).
You might want a better PSU but CoolerMaster is not the worst. Just make sure it has all the Crossfire connectors and is a single-rail design.
Look at the Corsair PSUs in the 650W range (that is PLENTY for 2x Crossfire).
The corsairs are a little pricey but SO worth it (if you can flex the budget).
Case is fine.
That BLUE drive ain't top notch (or best value) ... Dump it for a spinpoint or a caviar black ... worth a few bucks more.
Rather then tell you about all kinds of PSUs which you can't afford or are in your area, why don't you tell us what you can afford and find. Please give us a list of PSUs that you can find locally/order, and that are in your budget. We can pick from that list the best one.
Overall your build is pretty good. I'd probably try to get an x3 or x4, but thats your call.
hey i can go to x3 or x4 but u see the x2 555 be is the fastes dual core cpu on planet.
And the important thing is that it is a quad core with two cores disabled. So, in future( after 2yrs) when there would be need for quad core i can unlock it and i can still oc it to 3.6Ghz and it will be very stable. this is the link for the processor's review