aqua_chem- I had typed up a huge reply, and lost it, so I will try a quicker version.
The most "best" stuff I can recommend is Original Pancake house in Boulder, McGuckins Hardware in Boulder, Flatirons crossing/Mall in Broomfield, Celestial Seasonings, sample all the tea you can hold and see the packaging facility and gift shop, there is a neat little cafeteria, check for hours though, in North Boulder.
Totally unimpressed with Aquatic Exotics on Arapahoe, half of the times, I went there I was completely ignored, all I can say is I hope their experience makes up for a lack of customer service, two times I walked in walked around just to see what they had and walked out with out seeing an employee, they have been there for as long as I can remember.
Heard there is a new one in Boulder, have never been, will try and go soon.
Catfish Charlie's in Lafayette, I think off South Boulder Road x Hwy 287. Nice guy, small shop, hit or miss on stock.