Cols Tax Help

Hello, just need to know. I have a personal pension with Aviva, and I want to set up a pension formself, and the Company to make contributions. Questions are: 1. Do I need to set up any special Ltd Company pension or can I just pay into my existing Personal Pension. 2. Do I need to register a special pension scheme or file anything at HMRC. 3. For the Director (myself), does this mean I have to pay more tax. 4. Are there any financial limits to the amount I can pay in to the pension. So in short, can I just set up a Standing Order from my Company, directory to my personal pension and be able to claim Corporation Tax Relief? I want to do it properly, so your advice would be very much appreciated. Thanks.