Google can be an amazing tool
For the record, Tbolt was developed by Intel, not Apple, and it is a combination of PCIexpress and displayport. There are already firewire to tbolt converters, which does not give you all the speed of tbolt, but it is close. Asus plans to have it on some of its motherboards soon (some of the Sandy Bridge ones, I believe)
http://en.wikipedia.org/wiki/List_of_Thunderbolt-compatible_devices
Here is a PCIe adaptor card from Asus for about $200: http://www.tomshardware.com/news/asus-thunderbolt-Z77-H77-pcie,15925.html