Of course, this is answer really depends on what you consider a deal, what amenities you would like, etc... You should speak to a Realtor to help you further and give you recent market statistics on the particular type of apartment you're looking to purchase.
You should look into Kensington Mona, it is a great area, which will become very expensive very soon. You are close to Ocean Parkway, close to transportation, and close to Prospect Park and Park Slope.
Yes, there are lots of good deals on condos in Manhattan and Brooklyn. I work in both areas and would be happy to help you find what you are looking for. You can reach me at 917-657-6532 or email me at firstname.lastname@example.org.