It will all fit but you might have some trouble fitting hyper 212, it will be right next to the RAM slot 1 but it will be fine if your not using all 4 slots. If your just useing 2 you will be perfectly fine.
The PSU will be good to go if your not planning on doing CrossFireX.
The 2 blue slots and the hyper wont be a problem. And it really depends on the MOBO i fit will fit some leave more room than others. You def. dont need over 8 gig so you really dont need all 4 slots anyways. All in all the Hyper 212 is worth it! It cools wonderfully although some would argue, i love it.
A good future proof if it's in your budget is a good HD 6950 or 6970, that way if you want to do some CrossFireX down the road it will be a good card to do it with. The best brands are Sapphire and XFX.
someone told me the had a software that tells if you flashed their bios. i hope nothing goes wrong exarr. I got a family to worry about after i buy the graphics card you think it will. should i test it out in overclocking to make sure everything is good. the 6950 i am getting doesnt have a bios switch tho is it still safe to flash and flash back still making the warranty active.
LOL! Well i am going to tell you that i really don't know this one haha All i know is what i have read, not from personal. Sorry i couldn't help you more on that, but i think it would be safe just to check Overclocking first and i think you will be fine.