In my transition from film to digital I've learned to check with those who know rather than throwing money at something I don't have hands on experience with.
I copied a lot of old photos for folks who wanted pictures to share with friends and family and had no negative with a bellows between my camera and lens using a cable release. Since DSLR's don't have that provision I've been using the timer, but find it clumsy at best. I think a remote would be my best option. Would I be better off with a radio remote or IR?