Ok so I know there's probably already a few threads out there about this, but I'm not in the mood for spending a half-hour searching.
Here's the situation, this weekend I'm going to look at cameras in a few stores. I've used the Nikon D3100 and I really liked it. It's within my price range and covers all my needs, my problem is that I have no idea what SD card to get. I know that I need a relatively fast one to shoot videos and it also needs to be large enough to hold all the shots. I've looked around on the web a bit, but have had no luck.
So I'm asking if you could give me some pointers on how to decide what to get in terms of the SD card. Any help is appreciated, thanks guys!