For a Pre-Y2K D&B primer check the following out. Not sure if these artist have much material from the 2000's as I listen mostly to Jungle and Dub-Step now.
Keep in mind the term "D&B" actually covers a lot of sub-genres, the majority (IMO) being Reggae/Jazz influenced.
Roni Size & Reprasent ( NewForms & IN THE MODE are good a good place to start.)
Goldie
L.T.J Bukem
Lamb
DJ Dara
DRS & Kenny Ken
DJ Hype
DJ Krome & Mr.Time
The Terrorist
DJ Rap
Shy FX
DJ Soul Slinger
Plug
Hope that helps.
