So these are for rim brakes? I would just buy those hubs, then. I wouldn't buy disc brake hubs and then run 'em on a rim brake bike, but that's just me.

If you buy a disc bike in the future, it'll come with wheels...And you might want to keep the present bike.

Really, any of the wheels you are looking at will be good -- but I would go for the DT350 option. That is one of the best value hubs on the market.