Damn fine list, I will throw in a few more.
E-A-Ski
Messy Marv
Yukmouth
Luniz
Keak da Sneak
3X Krazy
Luni Coleone (a.k.a. Lunassicc)
Pizzo
Laroo
C-Bo
Cutthoat Committee (Mac Dre, Dubee, and PSD Collabo...pure slumper)
Ray Luv
Izrealz (Messy Marv and I-Rocc Collabo)
As far as some Bay cats getting on the map, there are some new spitters...
T-Nutty (2 albums to date, The Last Of The Flowheakinz and Flowmastermouth. Nut spits hard on both.)
A-Wax
Frontline
The Team
Balance
The Jacka (of the Mob Figaz)
Locksmith (Flows like none other.....)
A few good places to look for "New Bay" joints would be:
www.siccness.net Peep the BART forums, always a good link on there.
www.northern-ridaz.com Check under the Albums for Snippets/Songs or the Download for fully d/l zipped Mixtapes.