I reside in the UK and I am a computer engineer by profession, I am able to build, configure, and upgrade computer systems to suit customers needs. I am thinking of opening an online computer store where as, customers place orders on my website for new/second hand computers and I supply, I would also like to sell computer accessories (etc) on the site.
I have been in contact with suppliers and can obtain computer parts at trade prices.

If anyone has experience in this field, please feel free to give advise.
Many thanks.