Hey guys, this is my first post. I've been playing bass for 8 years now. I'm finally upgrading to a "big boy" rig. I just joined a progressive metal / metalcore band against my better judgement. There is a Hartke 3500 head for $250, a Hartke LH500 for $225, a Hartke Transient Attack with matching 4x10 cab for $400, and a GK 1001 - rb for $400. I want to spend the least amount and get the best sound possible. What would you guys suggest? Buying the head and cab package or a single head then pick up another cab somewhere? I'm worried that some of these might not keep up with my band. I'm up against a Peavy all tube head with a Mesa Boogie 4x10 and our other guitar player has a Line 6 half stack, not to mention a caveman of a drummer who couldn't not beat the hell out of his kit if the universe depended on it. I need to be able to keep up with these guys plus have a decent amount of headroom in case of an outside gig. Would the Hartke 3500s be enough with a 4x10 cab and maybe aother 1x15? I have absolutely no experience with any of these heads or cabs so any help is appreciated. THANKS!