Visas for Ghana – the High Commission in London has just changed over an online application system for visas – see VisaApplication.aspx.
The system is outrageously slow – it took an hour to fill in one form. You also have the option to pay online now. Print out a copy of the online form, sign and send with passport and 2 photos to High Commission in London. We got ours back in less than 2 weeks. It is possible to get a 2 year multiple entry visa for £160, a single entry visa is £50.