I've recently been looking into buying SSD's for my Mac Pro. I currently have a stock 640GB Hitachi HDD and a Western Digital 150GB HDD. They both have clock speeds of 7200RPM but under intense tasks I can clearly hear them struggling under pressure. Plus on such a great system I feel as though my hard drives are bottlenecking the system. My entire primary HDD is full since I imported lots of HD video footage from my Sony HDR-XR520V camcorder. I know that Intel X-25M are great (if not the best) SSD's out on the market. So I would really like to get two of them and set them up in RAID. I'm wondering if I should buy the 1st gen. ones from newegg since they're on special or wait for the second gen. ones? What will be the advantages? Also what performance gain will I get if I wait to install snow leopard on them?