Awesome, good to see some of the newer shopping carts are willing to be adventurous with features. Unfortunately it doesn't look like 3dcart works with paypal or google checkout. Foxycart does everything, but they are way expensive, and charge per sale.
But really, E-Junkie just needs to step up their development. It seems like they did some one time development back in the day, and now their dev team is a ghost town that barely has time to respond.
Now that Robin Kholi (e-junkie founder) has his f#@* you money, he's out of the startup mindset. Robin, if you're listening, I'd gladly put in $1000 for a bounty to implement bitcoin payments on e-junkie, my favorite shopping cart system.