harleydiesel, I have a 67 with herb Adams front and rear sway bars, KYB shocks newer springs, PolyGraphite bushings with Rubber Body Bushings 15" Rally II's with BFG Euro TA's and it all handles great with out too much road noise or vibration (due in part to the Rubber body bushings) and the roads up here in Seattle are not any better than down your way...

I'd at least go with the Rubber Body Bushings and PolyGraphite suspension bushings. But the components outlined by FirebirdMike would make for a sweet handeling package!

In addition to G.J's suggestions, there is Wayne Due up here just North of Seattle who makes custom front sub frames, and then Art Morrison is also up here for more suspension goodies...
http://www.waynedue.com/
http://www.artmorrison.com/

If you are going to do it a little at a time, do one mod, and then see how it reacts and feels, then the next, it's a good way to know wich components make the biggest difference. Or, if you have to do it all at once, then you'll have a completely different car from when you started... either way, I think you'll like the changes you make!

Brett - 67 Drop Top 455!