Is the Nikon D3100 a good camera for the money? My mom's got a 5100 and I realize that the 3100 is lower-end than the 5100, but B&H has the D3100 for $389, and I've been considering buying a DSLR to replace my Fuji S4200 (at least for normal shots, I'd still use the S4200 where I need a super-zoom, at least until I get a telephoto lens for the SLR). So basically what I'm wondering is if the D3100 is a good entry-level DSLR for someone ready to upgrade from a good bridge camera, and if the quality of the pictures from the 3100 would be worth the significant amount of money I would be spending. Also, would the D3100 be able to sync with flash units?, as I would like to get some Alien Bees or something similar to start good night photography.
So, should I spend the $389 to get a D3100 or would I be best off to save the money and stay with what I have or spend another $120 on a Canon T3I or D3200?