Mark, a lot of this has already been covered repeatedly but is not in a "best options" faq. As far as bearings and seals, OEM is pretty much the highest quality. Bearings can be timken or toyo, but I don't think anyone has ever really had a failure of one that was properly maintained.
I went with the inner axles and longfields, but I'd also say it's a good idea to go with new spindles with the roller bearings up front. If you go this route, assuming you're building the stock axles up as much as possible, I doubt you'll have issues with stock power train and 37's. If I had to pick a weak point at that stage I'd go with the front reverse cut r&p, when under load and going in reverse.