Anandtech reviews the 32G Mtron SSD to find out what $1500 can buy you in the storage market. Comparing it directly with the Western Digital Raptor 150GB, the surprise is that the king has been dethroned. "Game level load times" is the test that decides the match; in my opinion, a 20% improvement over the Raptor is nothing sort of impressive.
Just one word of caution (if you have that much money to burn): Intel chipsets have an 80 Mbs/s limit with SSDs that tamper with the performance of the drive, you must go the nVidia way. That one was unexpected, keeping in mind all the data corruption and speed limitations the 680 has suffered since it's introduction.