The £3,225 fee is per year and is known as the university 'top-up' fee. The rest of the cost of your education is funded by the government (ie. the tax payer) and the university itself. Most courses last for three years. At the moment this fee is covered by a loan taken out at the beginning of your course. The fee is automatically paid each year to your university, and you only pay it back once you have finished your degree and are earning money.
However, as an international student you have to pay all of your fees yourself. These vary from university to university, but are around £10,000 per year. To be granted a student visa you need to show that you can afford to pay not only the university fees, but that you have enough money for accommodation, food, etc. This is currently recommended to be around £8,000 per year. To be granted a student visa to enter the UK you need to show you can afford this.
There is more information in
this booklet. It's specific to the university I'm at, but there is lots of general information on the costs, getting a visa, etc.
The English Lanuage requirements again vary between universities, but my university has a fairly comprehensive list of accepted qualifications
here. If you don't have one of those qualifications then you have to attend a short English course before your actual course starts.
There is lots more information
here. Again, some of it is specific to my university, but a lot of it is general advice. Also, feel free to contact me with any other questions you've got about university here in the UK