I wouldn't listen to him. He's a smart spam bot.
My advice is not to skimp on the PSU and to avoid SLi. It's a premium only if you want to get crazy performance, but ultimately will be bottlenecked by the Phenom II. I would ensure you buy a 990FX motherboard to ensure you can upgrade to the next generation of AMD CPUs, because although the current crop of them are abysmal, it will hurt resale if you don't and there is hardly a premium on them.
I wish you best of luck, while I investigate this spam issue.