My thoughts...
Top menu buttons for 'systems & bundles' etc looks horrible. Doesn't fit next to the blue of the WD banner.
Grey colour doesn't work at all.
Change how items are laid out, put them into better categories. e.g.
Pre built systems & laptops together
bundles underneath
usual components - cpu, motherboard, ram, graphics, hard drives, optical, PSU, cases
then peripherals all together - mice, keyboards, monitors, networking
It does look good, just seems very cluttered and a mash of colours with a big splodge of grey over the top.