Well, I'm not sure I would use Hyundai and Toyota as an analogy given Toyota's recent debacle. You may be surprised if you test drive the recent Hyundai's. Unfortunately, most HD fail within the first three years, and some in the first year. I think most of these HD makers only give 1 year warranty because they expect it fail not too soon after warranty. I have not had a HD last more than 4 years, so 5 year warranty is reassuring. I have Mac Mini with FW 800.
WD has been recommended for its quietness but it has virtual Smartware you can't get rid of taking up 700 MB of disk space. Seems like there are as many good reviews as bad on WD drives.
Haven't heard the 968's. I've heard it's an improvement over the 938s but not on another level. Hyperion has had some issues with customer support, although I have had great support from them. I'm getting the Ridge Street Audio Sason. It's a two way but sounds like no other two way I've heard, including the Magico Mini's. I can send you some pics if you want, just email me.