I am going on a 10-day mission trip this summer to a Native American Indian reservation. I am hoping to take quite a few pictures while there, and though I am prepared to do this in my day-to-day life, I don't have enough memory cards to go the full 10 days, and I don't plan on taking my computer. I shoot a 5D Mark II, and I use 16 GB cards (2) right now. I would love other POTNers recommendations on good, affordable cards. Right now I use SanDisk Extreme, but I am open to any brand that is reliable.