Has anybody on here bought from these

http://www.carboncycles.cc/index.php

if so, any good…prices seem very reasonable, could be too good?

Shoudln't be any problem. The forks are the same as Superstar/White Bros and a couple of others. The seatposts some in a few badged version (including SS) too.

I've got one of their carbon seatposts on my road bike and it does what it should, my mate has been using their carbon forks on his mtb for a year, and again they have done what they should, and seen plenty of use.