The site was running like a 3 legged dog last night, and has been down all day today (GMT here).

From what I've seen and heard they are reputable (linked to Lightbox and Canadian Bitcoin), so not worried that they'll do a runner with the money.

Having staff available 24/7 is a too much for a small company, but it wouldn't hurt to have something like nodeping.com setup so they get a text when the site goes down, even if they just wake up and tweet or post on here to say they're aware of the issue and will look into it in the morning.