I agree. :iagree:
I know some who struggle to afford the parts to build a PC, yet will spend this just on a fancy case and a 750+ watt PSU. Unless you need such a fancy case or high wattage PSU (2+ graphics cards in SLI), consider getting something like the Antec 300 and a Corsair (or another reputable) 450w PSU and use the savings towards an SSD for the OS (60GB is enough for most needs) and a large HDD for storage.
See my SSD vs HDD video. I am fairly confident that a heavily overclocked PC with a HDD will feel more sluggish than an average spec PC with a good quality SSD, apart from CPU intensive tasks such as video encoding and playing video games.