I never thought someone would make me feel good for spending $800 on the Intel X25M, but the OP did so. I got a 204 on Xbench as well, and spent $1200 on the drive (albeit for much less capacity, but I don't need mountains of super-high speed storage like the OP). And I was able to get it through a on-the-market HD, didn't have to go through an Ebay rigamorol (sic), was able to order it through a real-life reseller (OK, it was MacMall, but close enough).
Something about these SSD RAID0 setups is off-putting. Running it on pre-release hardware, where FW or HW issues are a real possibility- in a striped setup, meaning either one of the two drives could fail and POOF, the entire array is bye-bye. Oh well- take the $300 you didn't spend on the CPU upgrade and buy a FW800 Hard Drive, and run SuperDuper/CCC lots and lots.