Regarding Kimms suggestion about splitting the business to avoid charging VAT to domestic customers.
I used to work for a VAT accountant, and this practice is known as "Artificial segregation". C & E are very hot on it, and if they find out you are doing it, (which they will on your very first VAT visit), they'll not only charge YOU the full amount,regardless of whether you increased your prices or not, but also a penalty of about 20% on top.
Dont do it!
The Silly One