Today my site appears to be back in action. Like I said before, whenever a medium to large algo update comes along, my site takes a hit that lasts for a few days. Fridays are typically slower but today (9am right now) I've done more sales than I did in each of the last 4 days.
Oh, one other tip...freshen your content! I have a blog and facebook page associated with my site. I've been adding new, fresh & original content to both over the past few days and that seems to have helped. Google likes Fresh Meat, but no artificial fillers please.