It's a no-go on the Cooler Master PSU. They make good cases, not good PSUs. Look into an Antec or Corsair.
32-bit??? There is absolutely NO reason for anyone to use 32-bit on any new system. Get 64-bit or go dig up an old P4 system to use.
Value RAM in a gaming rig? Say it ain't so!
Seriously, get some decent 1600 RAM. Kingston will work, but I would recommend Crucial or G.Skill.
Diamond graphics cards work, but they only offer a two year warranty.
Last one, but why in the %$## would you want to use an IDE/ATA drive? SATA 3.0 is the standard with SATA 6.0 coming on strong. ATA is two generations removed from what is being used. If you want slow, go for it. If you want speed and a warranty, look into Western Digital's Black series.