i am assuming you did use the cdma unlocker and not gsm correct? gsm will brick your verizon cdma phone. i know you said you've flashed before, but just checkin to make sure you didn't grab the wrong one.
i am on verizon as well. when i went to flash mine (first time flashing a phone) i thought it bricked as it turned off and was unresponsive for a little while, i just let it sit there, and it eventually finished flashing. hopefully you didn't unplug it when you noticed it looked like it was off.
also as for verizon i believe all you have to do is hold down the "volume down" button then turn the phone on to get to boot loader...
check this thread, and maybe try a hard reset
http://www.sskusers.net/support/showthread.php?t=1341
although, if you plug it in to charge and the orange light doesn't stay on, then somethin is probably messed up
best of luck. if it comes down to taking it to verizon just play dumb and they will probably never know what you tried to do