The H&R's are firm but quite low. The Hotchkis springs might be the stance you're looking for. If you want very firm but not necessarily lower in the front, how about the Global West springs? Read up on the Vogtland spring set as well. They sound like slightly firmer with a slight drop. Are you looking for rear springs too-or just fronts?
You could also install a set of the ZQ8 bump stops in the front... My car is riding right on them, as they are designed to be. Any impact will be absorbed partially by these new bumpstops. These, along with my Bilstiens, and Vogtlands should be an interesting ride.
Just got my ZQ8 bump stops from Dal today! Got a set of Hotchkis Springs also that are going in with these in the near future! I'm using Edelbrock IAS Shocks though and Love them! Edelbrock has finally worked the bugs (And leaking problem they had in the past) out of them.