Thus far the x86 port is only available to paying customers. x86 hobbyist program is expected very soon now (within the next few days/weeks). Until then, the best x86 option for hobbyist use is probably running the Alpha version under an emulator. (I don't know if any Itanium emulators are available.) Or emulated VAX–OpenVMS for VAX is no longer legally available to hobbyists, but not hard to find if you don't care about the legalities of it.
But I expect it would be several thousand dollars. I doubt they really want hobbyists as paying customers because the cost of servicing them is likely to greatly outweigh the revenue potential.
