My old 74GB raptor is coming up on its 5 year warranty and I think its performance has reduced a bit although it could just be my imagination. I was considering getting the 150GB raptor(the 300GB VRaptor is too expensive) but was wondering if its worth it or should I be getting one of the newer larger hdds? I know the WD 640GB has a higher read/write rate but that low access time of raptors really makes things feel faster. Any advice?