I am getting a couple of the ssd's to run in raid 0 and was wondering if the performance of the controller and cache will be worth the loss of TRIM support since the controller won't pass those commands.
I have a 3ware 9650E 4 port with battery backup and 256MB of cache from a previous small server build and a ASUS P6T motherboard.
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Since you don't have TRIM, i also highly recommend you do not use all space on the SSD. So if you get 2x 80GB = 160GB then you can create a C: drive on that volume of 120-140GB and leave the other space UNUSED and unpartitioned.
That would cope with having no TRIM support, and is necessary to keep SSDs from degrading rapidly in RAIDs without TRIM.