Well, I think I'm gonna go with the Behringer...
Money being the main issue at the moment this one sounds like the most bang for the buck. Slight issue I have is that the cab I'm getting is 16ohm, so the behringer being 450@4ohms is gonna lose a lot of power right?
I should note that my defence of the Behringer is based on it through a 4 ohm 410 or 115. No idea what it'd sound like going through 4 times the impedence.