UK baby websites

[symesa]

We're going to England this summer for a few weeks visiting Grandma. Are there some websites similar to this one where I can find info about baby products in the UK? I'll be needing carseats and their legal requirements info, where to rent a high chair & pack-n-play, where to find chlorine-free diapers, etc. Essentially, I need a Baby Bargains UK site.

Any ideas?