Try the google search engine in the blue bar near the top of the page as opposed to the the "search this forum" function.
http://www.google.com/custom?domains...ORID%3A1&hl=en
The Boss EQ is a buffered bypass. Many consider the boss bypass to be pretty good.
I don't know which EQ pedals are TBP if any are.
MXR has a 10 band EQ,...Artec has an EQ/Tuner pedal (I think).
Then there are parametric EQs and rackmount units.