Since it is a common source of questions (see the JSF thread) I thought I would put a bunch of info in one spot. Below are links to a number of aircraft currently in various stages of the acquisition process. Source for all the articles is Defense Industry Daily: while some articles are collated and have a number of links to other sources (including the primary contractor's propaganda), others are searches of their site and provide a lot of articles to wade through. This is by no means all the information that is out there, but it is enough to get you started.
Navy:
E-2D
http://www.defenseindustrydaily.com/e-2d-hawkeye-the-navys-new-awacs-03443/#more
P-8
http://www.defenseindustrydaily.com/p8-poseidon-mma-longrange-maritime-patrol-and-more-02980/#more
MH-60S
http://www.defenseindustrydaily.com/?s=mh-60s
MH-60R
http://www.defenseindustrydaily.com/?s=mh-60r
JSF
http://www.defenseindustrydaily.com/f35-joint-strike-fighter-events-contracts-2007-updated-02992/
USMC
H-1
http://www.defenseindustrydaily.com/snakes-rotors-usmc-h-1-helicopter-program-03541/#more
53K
http://www.defenseindustrydaily.com/ch53k-the-us-marines-hlr-helicopter-program-updated-01724/#more
MV-22
http://www.defenseindustrydaily.com/?s=v-22
Navy:
E-2D
http://www.defenseindustrydaily.com/e-2d-hawkeye-the-navys-new-awacs-03443/#more
P-8
http://www.defenseindustrydaily.com/p8-poseidon-mma-longrange-maritime-patrol-and-more-02980/#more
MH-60S
http://www.defenseindustrydaily.com/?s=mh-60s
MH-60R
http://www.defenseindustrydaily.com/?s=mh-60r
JSF
http://www.defenseindustrydaily.com/f35-joint-strike-fighter-events-contracts-2007-updated-02992/
USMC
H-1
http://www.defenseindustrydaily.com/snakes-rotors-usmc-h-1-helicopter-program-03541/#more
53K
http://www.defenseindustrydaily.com/ch53k-the-us-marines-hlr-helicopter-program-updated-01724/#more
MV-22
http://www.defenseindustrydaily.com/?s=v-22