How the fuck are they using a 500W PSU? That thing must be made of pure fucking magic. That PSU is going to be absolutely fucked in terms of longevity with the hardware involved.
Edit, I spent... next February it'll be three years old, I think about 1,500 euros building a machine that's about as powerful as that, my specs:
Overclocked i7 (4.2GHz with hyperthreading enabled)
12GB of 1600 DDR3 Ram
580GTX 3GB
1x 64GB SSD
2x 2TB HDD
2x 1TB HDD,
950w Corsair PSU
Generic DVD +/- DVD/CD Burner/Reader
Win7 Ultimate 32/64bit
Coolermaster RC 1000 Cosmos Case
The only things I've changed in the last three years was a mouse, adding in a pair of X-Box controllers for fighting games, a wireless headset and a mechanical keyboard. Already had a 24" screen and a 19" screen from the previous two machines I built so my rig is pretty beastly. That's also the joy of building your own machines, you can cannibalise your stuff into new builds so in about another year and two months when February rolls around again, I may just replace the motherboard, cpu, GPU ram and leave one of the 1TB HDDs and maybe even the SSD and buy a new motherboard, CPU, ram and GPU. Everything else is cake.