As far as I can remember, except for before we got him, Lui has only had his nails clipped once, at the groomers we went to who fixed up Lui's 'incident with the razor' (long story, check out my other thread). It sounded like he behaved though, I often pick up his feet etc just to see how he'll behave for it, and he's an angel. He's never really needed them clipped because we walk on the footpath a lot.
However, I've just won some nail clippers, as well as a full grooming set at our show today (also on another thread), and I want to use them. He should be fine with them though, he always stands still when I test him picking up his feet.