I want to ask what is difference in time Z lasts to one charging between C1000 with SD 1GB and c3000 without SD? It should be some differece because C3000 feeds hdd and I think that SD card needs less energy than hdd. Does any1 made measuring? I plan buy one of these beasts and battery time is very important parameter for me. Now when you can buy 2GB SD card is difference in space not so crucial. Than You for info