Firmware update fail - now wont boot

Was updating my firmware and an error occurred. Upon booting, the firmware update tries to complete, but fails and powers down at the progress bar screen.
I'm on a 15" MBP (2011 model) and the firmware I was trying to update to was 10.6.'the one just before Lion'. I have looked into burning a Firmware Restoration CD, but can't find one that is compatible with my MBP - model identifier: MacBookPro8,2.

Not sure if this is relevant but, I a have Windows 7 x64 bootcamp partition installed.

Anyway, if anyone knows how I can get a working computer again, I be very grateful to hear from you. Not even sure if I'll be able to target-disk my important files off if I can't get my firmware restored. Hmmmm.

Thanks a lot!

 

Ye, will do, as a last resort.

Tried target disk mode - only bootcamp partition mounts which isn't much use. Wonder if I can transfer my mac stuff from windows over local network or something.

Anyone got any firmware-restoration-based ideas?