I believe that's the same tea--there only seems to be one plantation that produces it, near as I can tell, anyway. I got mine through a local tea shop--Phoenix Tea, in Buren, WA-- http://phoenix-teashop.com/store/en/
. Not much cheaper, price-wise, but at least I wasn't getting hit with the pound-to-dollar conversion rates plus shipping.
If you're in the UK, though, Rare Teas is probably a lot more reasonable.
If you like white teas, I would definitely recommend this one. It's very much a white, with a very silky taste, but it has a really unique mouthfeel to it--the best way I can describe the taste is that its almost champagne-like around the edges. Plus I've never seen a tea made entirely of new sprouts before, with no leaves--the results are pretty interesting!