Main page:
1) The Twitter and Facebook buttons seem oddly placed. Maybe center them above "Need help?"
2) Try putting a transparent gradient over your screenshots. It'll make them look slick and less visually distracting.
3) The "From our blog" boxes look a little non-descript. Consider making it a list of "Date / Title", and to the right of them adding 1-3 testimonials.
Pricing page:
1) There's a 30 day free trial (make "Day" lowercase, imo), and below that, a $0/mo plan. Are they the same thing or different? It isn't clear.
2) "Pay as you go features" This also strikes me as unclear, since I associate "Pay as you go" as being a metered service. If it's really just $50 per event, you could come up with a better way to convey that. Consider putting a blue box around those features with a header saying $50/event, and then adding 10-20 pixels of space between the "Conqueror" and "Empire" plans.
Best of luck!