I have a pair of X25-E's in raid0 for my win7 install + wow. Choose a small stripe size (smaller than what you would do with platter drives) and leave a little space unpartitioned. I personally use a 50GB for my pair of 32GB drives because when in raid, trim does not exist. Intel drives use non-allocated blocks as spare area, so the internal garbage collection can keep the drive much closer to maximum speed when it has this extra spare area to work with. I also use 64kb stripe size, but 32kb should be doable considering you have so much extra processing power available.

Performance? I get about 500mb/s read and 400mb/s write with my array, as well as about 60mb/s random read/write. Wow loads as fast as the video card can copy the data and be ready. I really need to upgrade the GTX260 to a 480.

Oh, and other typical ssd advice, don't do silly things like defragging, running old os's like xp/vista, and benchmarking them to hell. I saw quite a few people at popular enthusiast forums running benchmark after benchmark, then being disappointed when they have stressed the garbage collection system on these so much that it can no longer keep performance within advertised specs.