I wait until after his bath, while he's having a bottle. I wait untill he's about mid bottle (when he's really relaxed) then DH calmly cuts them while I continue feeding him. All other times he's squirming all over the place...he's 6.5 months, but when I do it like this he's nice and calm, and we have no proplems getting them cut.....
oh....do a search of this board for my nail clipping thread, it was about 3 months ago...it will tell you my experience, and you'll see how far we've come....lol