Clicking on this link takes you to the store, which will be publicised and officially launched tomorrow, we see that it currently etails the red-topped DDR3-2,000 DOMINATOR memory in 3GB ($249.99) and 6GB ($579.99) kits. Further, a (slightly) cheaper derivative of GT, specced at 1,866MHz, is available for $479.99 in a 6GB package, and all prices exclude local taxes and postage.
Keeping the DOMINATOR GT-only theme going, you can view (but not currently purchase) a water-cooling block or even a TEC, to be released soon, and both can be attached on top of the modules by removing the red-coloured fins.
Having a go at buying a 6GB DDR3-2,000 kit, the system is clever enough (darn it) to know that VAT must be charged on UK purchases, and here's a dummy purchase order.

Do the same for a US national residing in Los Angeles and the total price comes down to $634.41.
We expect Corsair to add a greater number of practically bespoke items in the coming months, with high-speed SSDs and, perhaps, even chassis on the list.
I'm about to have a cold shower at the thought of almost spending £487 on some RAM.