I'm going with the SB400 because it's small and i can make it work with home made bounce card and defuser. It will fulfill my needs nicely
Some good info here http://www.kenrockwell.com/nikon/sb400.htm
Features of SB400
Compact, Lightweight Speedlight Unit
Perfect for anyone looking for more power and coverage than a built-in flash.
Simple, Intuitive Operation
Put it on, turn it on and shoot!
Flash Coverage
As wide as 18mm on Nikon DX-format digital SLR cameras.
Great Flash Exposures Easily
Utilizing Nikon's i-TTL intelligent flash technology for accurate flash exposures.
Convenient Operation
Powered with two AA-size (1.5V) batteries.
Fast 2.5-second Recycling Time
Keeps you shooting quickly.
Bounce Capabilities
Reduces background shadows and diffuses light for more pleasing results.
Versatile Shooting Range From 2 ft. up to 66 ft.
Provides flash power for distant subjects, group shots and close-up pictures
