Ironically, I think you might want to consider hiring a designer.
The A-number-one thing I notice about it is that it's one of those nice designs that looks like every other startup's templated nice design. My eyes flit around the first page looking for a place to land; the logo and the slogan next to it go unnoticed for a bit. The icons next to each item do not add anything at all to what you're trying to say. About the second thing I notice is the Gmail-like interface; since I'm curious about it, I click through the slides, but none of them are really blowing me away.
To me, there's no ... "pop". Nothing about it blows my hair back.
The bottom text boxes get clipped on my 17" widescreen display. Not sure if that was intentional or not.
Also, what's your target audience here? If it's other startups, then an iteration on this design might work well. If it's enterprise ... then I don't think you're going to get their attention with anything like this design.
It's an interesting idea though! ...I think?