hi all. just wondering what files are absolutely necessary to remain on my sd card. i have the latest version of HBC with a wiikey2, along with wiigator, wad installer, gecko and a myriad of others. i just updated to 4.0u via waninkoko's installer. there are so many things that i have installed that i'm not sure what needs to remain, and what can be removed to make more space. i only have a 2gb card right now. after a wad is installed, should i keep it on the sd card, or delete it? i have several wiiware titles that i installed and would like to add more, but space is becoming an issue. sorry if this is kinda confusing, but i am a little lost. thanks for any help!