Hi Ellen,
If you haven't already done so, you should download the information sheets from this site which tell you what each type of treatment will entail, and what its pros and cons are. Then, once you've read them, if you still have questions phone the PC-UK nurses who will be happy to talk to you for as long as you need.
What nobody can do, though, is make the decision for you; it's your choice whether to go for surgery or radiotherapy, and it's important that whatever choice you make you're happy with it in your own mind.
As your consultant said, there is no rush to make a decision, and given that whichever choice you make will have life-changing consequences, it's really not something you want to rush into.
Chris