Just ordered an R4DS. Just wondering what kind of Micro SD card I should get. The review on this site tested their R4 on a Sandisk Ultra II 1 gb so I am compelled to get that one but I was wondering if there was anyone using R4 with a norma Sandisk 1gb SD micro? ( You can get the norma Sandisk 1gb for considerably cheaper than the Sandisk Ultra II 1 gb) Does it make so much of a difference that it has an impact on running roms?