If your looking in the $300-400 range I might recommend an avatar cab. I owned a 212 a while back, and I can't for the life of me say anything bad about it.
As for the 115 or 210 debate, a 115 might be a good choice to fill out the low end, but if volume is your main concern you might want to drop the money for a 410 to take all the guess work out. A 210 and 410 combo would move some air, and for smaller/medium sized gigs, you could leave the 410 at home and save some money on chiropractor later in life
