Less than a month ago now, I purchased a brand spanking new top of the line Dell PC. Today it sits dormant on my desk after a hard disk failure. For me it's the last straw.
Um... neither Dell nor Apple (nor Microsoft) make hard drives. They are made by a few companies only: Western Digital, Seagate (incl. Maxtor), Fujitsu, Hitachi (formerly IBM), Samsung.
You have absolutely no justification for thinking a Mac's drive will be any more reliable than a PC's. Do you know who made the drive that failed, and the drive you'd get if you buy a Mac?
(I used to support storage systems, so if I wanted to I could bore y'all silly about "infant mortality" and the
bathtub curve... but I won't.)