I'm only 45 minutes away from Apogee (south of Denver in Colorado Springs). Got my Blue Tube and other rocket specific stuff from there. As a new rocketeer you should check out their website... lots of good info, videos, newsletters, etc. I just clicked the link I have for their website. It's back up and has had a facelift. Looks like they have gone back to the name 'Apogee Components', but the link rocketjet787 provided above is correct.
As far as non-specific rockets materials, I cut my own fins, centering rings and additional bulkheads from 1/4 Baltic birch plywood from a local Woodcraft. Lots of places to gets other pieces of needed hardware (local hardware stores, online - such as McMaster-Carr).
If you head towards high power certification and/or scratch building in the future, 'Modern High Power Rocketry' by Mark Canepa, and the 'Handbook of Model Rocketry' by G. Harry Stine are two great references. I would also spend a lot of time on this forum and talking to people at local club launches. The single most valuable resource to me has been the experience, skill and knowledge off fellow rocketeers.
As far as non-specific rockets materials, I cut my own fins, centering rings and additional bulkheads from 1/4 Baltic birch plywood from a local Woodcraft. Lots of places to gets other pieces of needed hardware (local hardware stores, online - such as McMaster-Carr).
If you head towards high power certification and/or scratch building in the future, 'Modern High Power Rocketry' by Mark Canepa, and the 'Handbook of Model Rocketry' by G. Harry Stine are two great references. I would also spend a lot of time on this forum and talking to people at local club launches. The single most valuable resource to me has been the experience, skill and knowledge off fellow rocketeers.