I am now accepting Bitcoin as payment via Coinbase on my site Robosprou[Suspicious link removed]m. Please email me at RobosproutBTC@gmail.com
for more info. My prices include shipping inside the continental US. I typically ship via USPS and international shipments are based on the exact total depending on location and service.
I use the Mt.Gox Weighted Average for my pricing. I would love to offer a set BTC price for my items but at this time I still have to convert my BTC to cash to pay suppliers (until I find some that accept BTC that is).
My store has been running for around a year and I have many customers worldwide. I am often in #reprap IRC as "Ccecil" if you have questions about the reprap project.
Feel free to email me with any questions.