I have many hours on both a dw733 and dw734, both are great machines. the 733 was ran to the point of destruction n the roller feed blocks. but a few dollars in parts and its back up and running again. the only difference between these two older models is that the 733 uses a single sided blade that can be sharpened, and the 734 uses the double sided blades.
The dust hood for both planers works good, but is an additional $40, so keep that in mind, and you cant fold up the outfeed table with it installed.
the only thing that I dont like is that the ears that you wind the cord on are easy to snap off, and the tables take a bit to set up to avoid snipe.