Well, call me a new proud ... or actually ... a nervous - 500H owner.
I took the chance and bought it and will pick it up in a week or so.
I guess then I should buy some extra bulbs and in the future be on the lookout for spare parts if they come up inexpensively enough. The power supply I imagine falls into that category but the controller I will replace in due time with the RHdesigns STopCLock timer in due time (when I get some $$$

)
Thanks for the information gents. I did not know that the bulbs could be either 300 or 150 so I didn't think to ask that one. Anyone know what part # the bulbs are and where to get them?
I'm in the US btw.