Since it would be cruel to leave you only with the leaked SSD family from Intel and a few hints from ASRock about the performance increase from even a 20GB SSD, here is some more information from VR-Zone.  Bear in mind we are still in the territory of leaked info and informed guessing but the topic is one worth keeping up with.

"Intel plans to officially launch Z68 Express chipset on May 18th but you will be able to see reviews online from 12th onwards. Of course, those who can’t wait for the official launch can already purchase the Gigabyte Z68X-UD7-B3 board from the retail market, first available in Taiwan and then the rest of the world in the coming weeks. Other brands like ASUS and ASRock are set to hit the retail next. Those enthusiasts hoping they can overclock their Sandy Bridge better on Z68 than the P67 will probably be disappointed but there is one important feature of Z68 that matters, and that is the SSD caching."

Here are some more Storage reviews from around the web:

Storage