I'm looking to upgrade my server's (Sunfire x4240) hard drives. I want to use WD Raptor 300GB drive (WD3000BLFS) but my sales rep is saying that they won't work with the server. Normally, I would be inclined to accept this, but Western Digital tells me that these drives will work in this server. Now I'm not sure who to believe, because I know the drives that Sun wants you to get are almost $600, and the WD drives are a little over $300. WD would want you to buy their product, but the sales guy wants you to spend more for his commission. Has anyone tried third party drives in this server and had success?