I really like OPPO units but I suspect that's more than what you want to spend. Panasonic has good models as does Sony.
One really good thing to do before buying is to go to the "owners only" forum for that model in the AVSForum and see what other users think. If you see a lot of firmware issues, then it's probably one to stay away. Of course, all Blu-Ray players need firmware updates occasionally - although it seems like the rate of the updates has reduced recently.