when i have this problems(fortunately not a single one in 5 years) it takes me 2 days, i determine what is failing and then send it back for warranty
ram and mainboards is what most fails, sometimes is not a failure, incompatibilities with some ram modules still exist
when you buy hard disks, please DO NOT BUY REFURBISHED
no matter the price, warranty , it doesn't matter, don't do it, be happy
i did it once, terrible experience
Yeah... anyone offering "refurbished" hard drives that doesn't operate a Class 100 Clean Room is yankin' ya, anyway. Buying a hard drive advertised as RFE (Removed From Equipment) or as a "pull" means you're getting something used. If the vendor is reputable, they'll be up front about this and offer the unit at a price consistent with the estimated hours on the device. Under those conditions, especially if you're trying to provision older equipment, used drives can be a sensible way to go, but in a new system, yeah, T6 is bang-on here.
As for RAM, I've had good luck with all of Crucial's products and with G-Skill as well. Good RAM for good prices.
@ff103: I think you'll be happy with Eric's work. He stays on top of the state of the art, and deals with some solid suppliers. Please post a review of your system once you get it and have a chance to evaluate it. One last thing: I make it a practice to open and inspect new hardware BEFORE powering it up. Things can get knocked loose in shipment, and a simple visual check can save you major headaches. (Eric's gear didn't have any problems except for the missing RAM I mentioned earlier, and he made that right very swiftly, but ya never know...)
Later On,
D