Running

Am using Brooks Pure Cadence for all my mileage at the moment, though am only running up to 10 miles max at present.
I went to Runners Need in Holborn, they were really helpful, listened to what I wanted, what I did not like in the current shoes I ran in, watched me on the treadmill, gave me about 5-6 options (which you can then test on the machines) and gave me a discount as I wanted two pairs.
The manager in store runs his marathons in the Brooks Pure Connect which are pretty minimal, so it may be worth visiting them and having a chat / try out.

Shoe recommendations (or this may well translate as shop recommendations) pleas. Running my first marathon in April, only just been confirmed, and running 18 miles on Sunday in my Nike Frees was not much fun. Would like something with a bit more padding, but still reasonably minimal. Advice? Or shops in West/Central london to visit for advice?

Cheers