Computer won't start up and was previously acting funny

Hi,
I am in Japan en route to Bangkok where I hope to find a store that knows something about my computer. I have been letting it sit in my bag for about a week when I went hiking in Japan and now it won't start properly. If I start normally, immediately I get a shadowed screen that displays the message:
'You need to restart your computer. Hold down the power button for several sconds or press the Restart button.'
I have tried this many time but the screens comes up every time now. I then try to restart holding down the shift key in safe mode, which did work just earlier but still with problems, but not it also immediately turns the screen black and shuts the computer down.
Does anybody recognize these symptoms and have some suggestions for what to do since I am traveling. Should I have my installer disk mailed to me from Canada or is there another way to fix this? I can't even get into my desktop so I can't run any tests or repair programs....
Thanks and please help,
Alex

So I tried what you suggested and achieved the following results:
immediately upon reaching the root#: prompt the computer itself launched panic debugger and executed it then and finished but with no positive result. I wasn't able to type anything in at the root prompt because this debugger started right away and then I would restard my computer again.
Some key lines from the script I saw:
yellow text that said "Faild to load extensions com.apple.driver.AppleUSBEHCT"
and also an error code:0X00000000
Do you think this is RAM related or something else. If I need my install disk and I don't have it, can I use any install disk for Macbook Pro that I can get my hands on?
Thanks,
Alex

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Computer won't start up and was previously acting funny

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