I've tried a few brands and really like the Stealthcam brand. My current game cam is a flash model. I tried an IR so that the flash wouldn't spook the animals, but I didn't care for the way the pictures looked. Nothing seems to mind the flash, and I've sat and watched them with my binoculars feeding with the flash going off, and they don't care.
I think the model number is 1590, or something like that. The 90 stands for how far the flash is good for, which is pretty impressive. Another feature that led me to chose this model is that it's 12 volts. My feeder runs off of a 12 volt battery that is kept charged with a solar cell charger. I wired my game camera up to the same battery, so that's why I wanted 12 volts. Otherwise, 6 volts would be fine, though I'd highly recommend going solar on keeping it charged. Running out of power just means you missed out on some pics that might have been interesting.
Mine sells for $99, which is pretty good. My brother bought a few that were cheaper, but they were pretty bad and he just threw them away. I know there are some that sell for allot more, but I don't see the advantage to paying any more. I get 300 to 800 pictures a week on my camera. Mostly it's birds and racoon's, but what I'm looking for are hogs and deer. I use it to track the hog activity and to know when it's a good time to either get up early or stay out late to hunt them.
Good luck, it's really allot of fun to see what's out there.
Eddie