Judging by the heads of some of his various Guitars it would look as though they're Fenders, not sure exactly what model. Not a Fender. I saw them in concert this summer... Lakland XS - (which is 35" 4-string tuned BEAD), according to "Dan" at Lakland. These run around 3-4000$.
Jason Newstead
Vigier
Hofner
Gibson, or Fender
There are many different brands of vintage bass guitars. One of the more popular brands seems to be Bender. Gibson is another popular brand of vintage bass guitar.
Fender Stratocaster
Jerry Scheff
ibanez verdine white
bongo 4 series bass guitar Jason jay James uses it from bullet for my valentine
One can purchase Crate brand bass amplifiers from a music store. Guitar Center is a great reputable music store that sells Crate brand bass amplifiers.
Breedlove Burns ...there may be more
Personally I love Ernie Balls