Succulent ID

Some of the succulents brought over by John recently are unknown to me (surprise!) so I'm posting them here so I can hopefully get an ID from some of my clever friends. The first is an interesting, small-leaved plant with soft, triangular (in section) leaves on pink stems (Update: it's Oscularia deltoides - pink iceplant.) The second is a massive great big cactus with very small spines which underwent a rot-removal operation with a breadknife last night. Our thoughts are with him at this stressful time... (Update: I think it's a Trichocereus pachanoi)