I'm currently using a Peavey Combo115 soon to be with a 210TVX extension cabinet, both are the latest editions. The rig is great for practices, just loud enough to overcome our guitarist's Bandit112 w/112 Cab, Drummer and PA system but I have a lot of trouble at gigs, I always have to PA the Combo and use the 115 as a monitor for the rest of the band. What I really want to do is buy a PV1500 (I can get one for £330 (around $500), damn cheap here in London), plug the preamp out of the Combo115 into it and then run 2 4ohm Cabs into it. But I really don't know what cabs to use. I want to stick with Peaveys, simply because the price of anything else over here is far too high, and Peavey are reliable quality. The PV1500 runs at 500watts per side at 4ohms. If I want to run it at full volume, I need cabs that can run Continuous at 450+watts, right? No peavey cabs can do that unless I get the Pro series. I don't have enough money to buy 4 8ohm cabs, and I fear I'd loose the headroom if I did. What do you all recommend?