If you intent to get one of those high-end GPUs + i5 3570k + overclocking , you will need a better PSU . 450W won't cut it (for long term usage , PSU does degrade over time)
http://www.newegg.com/Product/Product.as...6811163212
http://www.newegg.com/Product/Product.as...6811163212
Laptop:
Mini PC ::