I struggle a lot with steep descents on my road bike (with old, slightly flexy caliper brakes).
Another technical tip is to keep your weight toward the back of the saddle, and brace your arms slightly against the bracing force (not locked, but resisting).
I'm trying to build up my confidence at the moment. I know there are a fair few hills around me that I'm definitely not at all happy going down, but there are also plenty of fun ones, and a fair few in between. It's these "in between" ones that I'm currently building my confidence on. It obviously helps a *lot* if you know the route well, so beware double chevron hills on a newly planned route!