hi all - i have an opportunity to install a western digital 200gb drive, but it only has a 2mb buffer. my other two drives (also both wd's) have 8mb buffers. what i'm thinking about doing is swapping out my primary c-drive (80g) with this 200g model. but i'm concerned about the buffer. it seems to me i should try to stick with 8mb, because if i understand correctly, it's a significant improvement? i don't really need this 200g model, so it won't kill me if i don't install it. thx!