I currently play a MIM Jazz into a Hartke HA3500 head and a Peavey 2x15" cab. I also use an old Russian Big Muff pedal at all times...it belonged to my friend and was completely broken, I wired it all back together and now it just about works and sounds cool!
The bass is the only piece of gear I payed for myself, the rest has been bought on my behalf by the band I play in. Ideally I'd be playing through an Ampeg SVT and an Orange 1x15 + 4x10 stack.