Easy Digital Downloads replacement

Hi,

I am trying to simplify all the plugins I use on my sites and I'm hoping WPMU can cover everything I need.

Right now I use Easy Digital Downloads for 1-time transactions. See: http://makeyourbodywork.com/downloads/bare-truth-confessions-personal-trainer/

Someone pays a set price (or chooses from a list of price options), pays, then immediately receives their download.

Can this be accomplished using Marketpress or any other WPMU plugin?

Thanks!