My 2c's
Gigabyte MB (all solid state but shut done the Dynamic Energy saver)
4GB Cosair 1066
Intel Core 2 or Quad depends on what you want to do. (they are faster atm)
Seagate ES drives
Nvidia 9600 (but the ATI is much much faster and the 4870 kills the lastest nvidia by 2 times look up the spec on websites).
depending on how long you want the computer to last invest in some quality components.