I know these things are fast! but is it really worth the high prices? On my upcoming build I picked out this hdd... http://www.ncix.com/products/index.php?sku=16141&vpn=WD2500KS&manufacture=Western Digital and I was talking to a friend and he said to go for a 10 000rpm drive... but the only problem is one of those... for example the WD raptor 36gb's is 20 dollars CDN more expensive then the 250gb SATA2 drive i picked out. I am trying to cut costs and splurging on a hdd isnt the best idea . So what do you think?