have i broken my MacBook Pro?

I'm hoping someone can offer some advice.


I was just editing something on Photoshop and a message popped up saying that my startup disk was almost full which I thought was impossible since it had 240GB free y'day.


So, I did an Omnidisk Sweep and it turned out that Photshop had been saving 64GB versions of my projects in a file called something like PRIVATE/VAR so I just deleted the whole 'Private' file.


And now, I can't get it to startup.
I restarted the Mac and it is just stuck on the Apple Startup screen with the swirly thing.
Not even booted up Snow Leopard.

Yikes.


I looked on the finder thing before I deleted it and it was just full of mumbo jumbo and there was a file below with all the things like 'Users' so didn't delete them.
I wonder if I've somehow deleted the OS startup file? Anyone got any ideas?

I am wary of doing a time machine restore as it's been a while since my last one.

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