here's my suggestions.
1. have you tried the logo with an orange ring around the tigers head? it may stand out better against the black background (which i like).
2. Product descriptions. These are poor. Apart from the technical spec you need to tell me what the advantages and disadvantages of the products are compared to their cheaper and more expensive brothers and sisters.
3. Welcome page. More details here. Why should i buy from you? what makes you different from the competition? you don't need to go mad cause a lot of the stuff will be on the about us page.
4. About us. You've told me nothing i didn't already know from the moment i clicked the link and landed at your site!!!!!!!
Do you have a background in security? what's the history behind you setting up the company?
5. Contact us. Already said but there's no way i'd buy a thing from you without a landline number to call. I want to know your registered business address and your VAT registration number. Anyone visiting a retail website will expect this information to be freely available. You need to convince your potential customers that buying from you will be a safe and pleasant experience.
6. What's your policy on returning faulty and unwanted goods?