I will finally be making the jump to DSLR within the next two weeks after waiting two years. I'm going to order the Nikon D40 kit for me to learn on. I will also order a new SD memory card for it with more capacity than my current one. My question is, how important is a high speed card compared to just a standard card? I know there are a lot of factors that should be considered, but I am just wondering in general. Thank you.