I'd give it a 1.5k build and keep the 500 in savings for future use. You can grab a case like the Lian Li or Antec 900. Also you don't need a 1.2kw psu, a 600w or equivalent will work fine. Don't get a 150gb raptor. Get a 60gb raptor and a 200-300gb file drive, much better performance. Next, you don't need two separate drives. A LG combo CD/DVD drive is much better.