hey, look on the bright side, if they end up kicking you out of the band, you can do some more collaborations with me :p jk
but seriously, that sucks. all desicions like this should be made with the WHOLE band! but don't get pissed with them, go talk to them firmly, but non-confrontation-ally (how's that for a word?) as juijitsu said. maybe you can figure out what's going on, or maybe they planned on telling you, but hadn't done so yet.. or something...
also, you want to raise 20 grand? hired assassinations. you could probably make like 20K-50K for something small (like a man wanting his wife to die mysteriously so he can pursue another woman) or millions for something big (like the president) it's either that, or bounty hunting... I hear osama has a hefty price on his head.